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31023101132 = 22232917367213
BaseRepresentation
bin11100111001000111…
…101111010011001100
32222002001102211021122
4130321013233103030
51002013403214012
622130220420112
72145532002662
oct347107572314
988061384248
1031023101132
111217a806061
1260196a7638
132c0533009a
14170428ac32
15c1886ee72
hex7391ef4cc

31023101132 has 48 divisors (see below), whose sum is σ = 58943989440. Its totient is φ = 14242491648.

The previous prime is 31023101119. The next prime is 31023101173. The reversal of 31023101132 is 23110132013.

It is a self number, because there is not a number n which added to its sum of digits gives 31023101132.

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, 427958 + ... + 495170.

It is an arithmetic number, because the mean of its divisors is an integer number (1227999780).

Almost surely, 231023101132 is an apocalyptic number.

It is an amenable number.

31023101132 is a deficient number, since it is larger than the sum of its proper divisors (27920888308).

31023101132 is a wasteful number, since it uses less digits than its factorization.

31023101132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67442 (or 67440 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 31023101132 its reverse (23110132013), we get a palindrome (54133233145).

The spelling of 31023101132 in words is "thirty-one billion, twenty-three million, one hundred one thousand, one hundred thirty-two".

Divisors: 1 2 4 23 29 46 58 92 116 173 346 667 692 1334 2668 3979 5017 7958 10034 15916 20068 67213 115391 134426 230782 268852 461564 1545899 1949177 3091798 3898354 6183596 7796708 11627849 23255698 44831071 46511396 89662142 179324284 267440527 337207621 534881054 674415242 1069762108 1348830484 7755775283 15511550566 31023101132