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31023310322 = 2557238911657
BaseRepresentation
bin11100111001001000…
…100010010111110010
32222002001211110020102
4130321020202113302
51002013431412242
622130225112402
72145533533604
oct347110422762
988061743212
1031023310322
111217a939244
126019788702
132c053a4374
141704303174
15c188b1e32
hex7392225f2

31023310322 has 16 divisors (see below), whose sum is σ = 46642025880. Its totient is φ = 15475997568.

The previous prime is 31023310267. The next prime is 31023310393. The reversal of 31023310322 is 22301332013.

It can be written as a sum of positive squares in 4 ways, for example, as 19406997481 + 11616312841 = 139309^2 + 107779^2 .

It is a super-2 number, since 2×310233103222 (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 31023310294 and 31023310303.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2655518 + ... + 2667174.

Almost surely, 231023310322 is an apocalyptic number.

31023310322 is a deficient number, since it is larger than the sum of its proper divisors (15618715558).

31023310322 is a wasteful number, since it uses less digits than its factorization.

31023310322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14605.

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 31023310322 its reverse (22301332013), we get a palindrome (53324642335).

The spelling of 31023310322 in words is "thirty-one billion, twenty-three million, three hundred ten thousand, three hundred twenty-two".

Divisors: 1 2 557 1114 2389 4778 11657 23314 1330673 2661346 6492949 12985898 27848573 55697146 15511655161 31023310322