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31133022332 = 2237887237157
BaseRepresentation
bin11100111111101011…
…000011100001111100
32222100201021101211012
4130333223003201330
51002230023203312
622145144414352
72151335215646
oct347753034174
988321241735
1031133022332
1112226863525
12604a4773b8
132c22038609
141714b01896
15c23334322
hex73fac387c

31133022332 has 24 divisors (see below), whose sum is σ = 56018616864. Its totient is φ = 15128655552.

The previous prime is 31133022311. The next prime is 31133022343. The reversal of 31133022332 is 23322033113.

It is a junction number, because it is equal to n+sod(n) for n = 31133022298 and 31133022307.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12698 + ... + 249854.

It is an arithmetic number, because the mean of its divisors is an integer number (2334109036).

Almost surely, 231133022332 is an apocalyptic number.

It is an amenable number.

31133022332 is a deficient number, since it is larger than the sum of its proper divisors (24885594532).

31133022332 is a wasteful number, since it uses less digits than its factorization.

31133022332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 238085 (or 238083 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 23.

Adding to 31133022332 its reverse (23322033113), we get a palindrome (54455055445).

The spelling of 31133022332 in words is "thirty-one billion, one hundred thirty-three million, twenty-two thousand, three hundred thirty-two".

Divisors: 1 2 4 37 74 148 887 1774 3548 32819 65638 131276 237157 474314 948628 8774809 17549618 35099236 210358259 420716518 841433036 7783255583 15566511166 31133022332