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31033013132 = 2211719933743
BaseRepresentation
bin11100111001101101…
…100011001110001100
32222002202002101222202
4130321231203032030
51002023422410012
622131213101032
72146012154642
oct347155431614
988082071882
1031033013132
11121853660a0
126020a87778
132c073c0884
14170570b192
15c1967bcc2
hex739b6338c

31033013132 has 24 divisors (see below), whose sum is σ = 60079283712. Its totient is φ = 13907238800.

The previous prime is 31033013057. The next prime is 31033013159. The reversal of 31033013132 is 23131033013.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4963748 + ... + 4969995.

It is an arithmetic number, because the mean of its divisors is an integer number (2503303488).

Almost surely, 231033013132 is an apocalyptic number.

It is an amenable number.

31033013132 is a deficient number, since it is larger than the sum of its proper divisors (29046270580).

31033013132 is a wasteful number, since it uses less digits than its factorization.

31033013132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9933829 (or 9933827 counting only the distinct ones).

The product of its (nonzero) digits is 486, while the sum is 20.

Adding to 31033013132 its reverse (23131033013), we get a palindrome (54164046145).

The spelling of 31033013132 in words is "thirty-one billion, thirty-three million, thirteen thousand, one hundred thirty-two".

Divisors: 1 2 4 11 22 44 71 142 284 781 1562 3124 9933743 19867486 39734972 109271173 218542346 437084692 705295753 1410591506 2821183012 7758253283 15516506566 31033013132