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31030231304 = 23291913072281
BaseRepresentation
bin11100111001100010…
…111100000100001000
32222002112212002001002
4130321202330010020
51002022214400204
622131033314132
72145646420442
oct347142740410
988075762032
1031030231304
1112183836066
12601bb65948
132c06958617
1417051c5492
15c192cc91e
hex7398bc108

31030231304 has 64 divisors (see below), whose sum is σ = 60726758400. Its totient is φ = 14846630400.

The previous prime is 31030231283. The next prime is 31030231357. The reversal of 31030231304 is 40313203013.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13602644 + ... + 13604924.

It is an arithmetic number, because the mean of its divisors is an integer number (948855600).

Almost surely, 231030231304 is an apocalyptic number.

It is an amenable number.

31030231304 is a deficient number, since it is larger than the sum of its proper divisors (29696527096).

31030231304 is a wasteful number, since it uses less digits than its factorization.

31030231304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2814 (or 2810 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 31030231304 its reverse (40313203013), we get a palindrome (71343434317).

The spelling of 31030231304 in words is "thirty-one billion, thirty million, two hundred thirty-one thousand, three hundred four".

Divisors: 1 2 4 8 29 58 116 191 232 307 382 614 764 1228 1528 2281 2456 4562 5539 8903 9124 11078 17806 18248 22156 35612 44312 58637 66149 71224 117274 132298 234548 264596 435671 469096 529192 700267 871342 1400534 1700473 1742684 2801068 3400946 3485368 5602136 6801892 12634459 13603784 20307743 25268918 40615486 50537836 81230972 101075672 133750997 162461944 267501994 535003988 1070007976 3878778913 7757557826 15515115652 31030231304