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10144342040 = 2357315322051
BaseRepresentation
bin10010111001010011…
…00110000000011000
3222011222100222011212
421130221212000120
5131233422421130
64354340242252
7506246325140
oct113451460030
928158328155
1010144342040
114336242358
121b713a0388
13c58887c71
146c33b7920
153e58c0e95
hex25ca66018

10144342040 has 128 divisors (see below), whose sum is σ = 27436216320. Its totient is φ = 3302208000.

The previous prime is 10144342031. The next prime is 10144342063. The reversal of 10144342040 is 4024344101.

It is a happy number.

It is a super-2 number, since 2×101443420402 (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 10144341997 and 10144342015.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 449015 + ... + 471065.

It is an arithmetic number, because the mean of its divisors is an integer number (214345440).

Almost surely, 210144342040 is an apocalyptic number.

10144342040 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 10144342040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13718108160).

10144342040 is an abundant number, since it is smaller than the sum of its proper divisors (17291874280).

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

10144342040 is a wasteful number, since it uses less digits than its factorization.

10144342040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22153 (or 22149 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 23.

Adding to 10144342040 its reverse (4024344101), we get a palindrome (14168686141).

The spelling of 10144342040 in words is "ten billion, one hundred forty-four million, three hundred forty-two thousand, forty".

Divisors: 1 2 4 5 7 8 10 14 20 28 31 35 40 53 56 62 70 106 124 140 155 212 217 248 265 280 310 371 424 434 530 620 742 868 1060 1085 1240 1484 1643 1736 1855 2120 2170 2968 3286 3710 4340 6572 7420 8215 8680 11501 13144 14840 16430 22051 23002 32860 44102 46004 57505 65720 88204 92008 110255 115010 154357 176408 220510 230020 308714 441020 460040 617428 683581 771785 882040 1168703 1234856 1367162 1543570 2337406 2734324 3087140 3417905 4674812 4785067 5468648 5843515 6174280 6835810 8180921 9349624 9570134 11687030 13671620 16361842 19140268 23374060 23925335 27343240 32723684 36229793 38280536 40904605 46748120 47850670 65447368 72459586 81809210 95701340 144919172 163618420 181148965 191402680 253608551 289838344 327236840 362297930 507217102 724595860 1014434204 1268042755 1449191720 2028868408 2536085510 5072171020 10144342040