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31949065230 = 23510511013291
BaseRepresentation
bin11101110000010100…
…000000110000001110
310001110120210200020020
4131300110000300032
51010412430041410
622402135203010
72210504400525
oct356024006016
9101416720206
1031949065230
1112605461645
126237816466
133022117734
1417912454bc
15c6ecc9a70
hex770500c0e

31949065230 has 32 divisors (see below), whose sum is σ = 76750789248. Its totient is φ = 8511636000.

The previous prime is 31949065219. The next prime is 31949065237. The reversal of 31949065230 is 3256094913.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31949065237) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 475116 + ... + 538175.

It is an arithmetic number, because the mean of its divisors is an integer number (2398462164).

Almost surely, 231949065230 is an apocalyptic number.

31949065230 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

31949065230 is an abundant number, since it is smaller than the sum of its proper divisors (44801724018).

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

31949065230 is a wasteful number, since it uses less digits than its factorization.

31949065230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1014352.

The product of its (nonzero) digits is 174960, while the sum is 42.

The spelling of 31949065230 in words is "thirty-one billion, nine hundred forty-nine million, sixty-five thousand, two hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 1051 2102 3153 5255 6306 10510 15765 31530 1013291 2026582 3039873 5066455 6079746 10132910 15199365 30398730 1064968841 2129937682 3194906523 5324844205 6389813046 10649688410 15974532615 31949065230