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31322103332 = 22132753218797
BaseRepresentation
bin11101001010111100…
…010101111000100100
32222211220001201012012
4131022330111320210
51003121424301312
622220021213352
72156122325342
oct351274257044
988756051165
1031322103332
1112313568913
1260a1861258
132c5226b970
141731c80992
15c34c33322
hex74af15e24

31322103332 has 24 divisors (see below), whose sum is σ = 59051829816. Its totient is φ = 14451038208.

The previous prime is 31322103331. The next prime is 31322103367. The reversal of 31322103332 is 23330122313.

It can be written as a sum of positive squares in 4 ways, for example, as 8356519396 + 22965583936 = 91414^2 + 151544^2 .

It is a junction number, because it is equal to n+sod(n) for n = 31322103298 and 31322103307.

It is not an unprimeable number, because it can be changed into a prime (31322103331) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33758 + ... + 252554.

It is an arithmetic number, because the mean of its divisors is an integer number (2460492909).

Almost surely, 231322103332 is an apocalyptic number.

It is an amenable number.

31322103332 is a deficient number, since it is larger than the sum of its proper divisors (27729726484).

31322103332 is a wasteful number, since it uses less digits than its factorization.

31322103332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221567 (or 221565 counting only the distinct ones).

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

Adding to 31322103332 its reverse (23330122313), we get a palindrome (54652225645).

The spelling of 31322103332 in words is "thirty-one billion, three hundred twenty-two million, one hundred three thousand, three hundred thirty-two".

Divisors: 1 2 4 13 26 52 2753 5506 11012 35789 71578 143156 218797 437594 875188 2844361 5688722 11377444 602348141 1204696282 2409392564 7830525833 15661051666 31322103332