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31000010332 = 2215594971137
BaseRepresentation
bin11100110111101111…
…101001111001011100
32222000102222200122211
4130313233221321130
51001442000312312
622124033450204
72145131511604
oct346757517134
988012880584
1031000010332
1112168774655
126011a10964
132c00606ba5
141701199c04
15c1680d3a7
hex737be9e5c

31000010332 has 12 divisors (see below), whose sum is σ = 54284826960. Its totient is φ = 15490059776.

The previous prime is 31000010311. The next prime is 31000010341. The reversal of 31000010332 is 23301000013.

It is a super-2 number, since 2×310000103322 (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2479333 + ... + 2491804.

It is an arithmetic number, because the mean of its divisors is an integer number (4523735580).

Almost surely, 231000010332 is an apocalyptic number.

It is an amenable number.

31000010332 is a deficient number, since it is larger than the sum of its proper divisors (23284816628).

31000010332 is a wasteful number, since it uses less digits than its factorization.

31000010332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4972700 (or 4972698 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 13.

Adding to 31000010332 its reverse (23301000013), we get a palindrome (54301010345).

The spelling of 31000010332 in words is "thirty-one billion, ten thousand, three hundred thirty-two".

Divisors: 1 2 4 1559 3118 6236 4971137 9942274 19884548 7750002583 15500005166 31000010332