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1030240040240 = 24526994771397
BaseRepresentation
bin11101111110111110001…
…01110111010100110000
310122111020012101122011102
432333133011313110300
5113334412422241430
62105141415303532
7134301210565445
oct16773705672460
93574205348142
101030240040240
11367a1670a794
1214780137aba8
13761c72c6b88
1437c146d79cc
151bbeb4a8345
hexefdf177530

1030240040240 has 40 divisors (see below), whose sum is σ = 2396196075600. Its totient is φ = 411943245056.

The previous prime is 1030240040233. The next prime is 1030240040257. The reversal of 1030240040240 is 420400420301.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×10302400402402 (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2169779 + ... + 2601618.

It is an arithmetic number, because the mean of its divisors is an integer number (59904901890).

Almost surely, 21030240040240 is an apocalyptic number.

1030240040240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1030240040240 is an abundant number, since it is smaller than the sum of its proper divisors (1365956035360).

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

1030240040240 is a wasteful number, since it uses less digits than its factorization.

1030240040240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4774109 (or 4774103 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

Adding to 1030240040240 its reverse (420400420301), we get a palindrome (1450640460541).

The spelling of 1030240040240 in words is "one trillion, thirty billion, two hundred forty million, forty thousand, two hundred forty".

Divisors: 1 2 4 5 8 10 16 20 40 80 2699 5398 10796 13495 21592 26990 43184 53980 107960 215920 4771397 9542794 19085588 23856985 38171176 47713970 76342352 95427940 190855880 381711760 12878000503 25756001006 51512002012 64390002515 103024004024 128780005030 206048008048 257560010060 515120020120 1030240040240