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1024130032440 = 2335139129747339
BaseRepresentation
bin11101110011100101110…
…10000010001100111000
310121220110101100002011020
432321302322002030320
5113234404242014230
62102251232502440
7133663616433564
oct16716272021470
93556411302136
101024130032440
11365370782469
121465970aaa20
13757624c2348
14377d50506a4
151b98ed90810
hexee72e82338

1024130032440 has 128 divisors (see below), whose sum is σ = 3096944928000. Its totient is φ = 270921811968.

The previous prime is 1024130032423. The next prime is 1024130032441. The reversal of 1024130032440 is 442300314201.

1024130032440 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 1024130032440.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1024130032441) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 21610291 + ... + 21657629.

It is an arithmetic number, because the mean of its divisors is an integer number (24194882250).

Almost surely, 21024130032440 is an apocalyptic number.

1024130032440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1024130032440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1548472464000).

1024130032440 is an abundant number, since it is smaller than the sum of its proper divisors (2072814895560).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1024130032440 is a wasteful number, since it uses less digits than its factorization.

1024130032440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48789 (or 48785 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 1024130032440 its reverse (442300314201), we get a palindrome (1466430346641).

The spelling of 1024130032440 in words is "one trillion, twenty-four billion, one hundred thirty million, thirty-two thousand, four hundred forty".

Divisors: 1 2 3 4 5 6 8 10 12 15 20 24 30 40 60 120 139 278 417 556 695 834 1112 1297 1390 1668 2085 2594 2780 3336 3891 4170 5188 5560 6485 7782 8340 10376 12970 15564 16680 19455 25940 31128 38910 47339 51880 77820 94678 142017 155640 180283 189356 236695 284034 360566 378712 473390 540849 568068 710085 721132 901415 946780 1081698 1136136 1420170 1442264 1802830 1893560 2163396 2704245 2840340 3605660 4326792 5408490 5680680 6580121 7211320 10816980 13160242 19740363 21633960 26320484 32900605 39480726 52640968 61398683 65801210 78961452 98701815 122797366 131602420 157922904 184196049 197403630 245594732 263204840 306993415 368392098 394807260 491189464 613986830 736784196 789614520 920980245 1227973660 1473568392 1841960490 2455947320 3683920980 7367841960 8534416937 17068833874 25603250811 34137667748 42672084685 51206501622 68275335496 85344169370 102413003244 128016254055 170688338740 204826006488 256032508110 341376677480 512065016220 1024130032440