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31013658463 is a prime number
BaseRepresentation
bin11100111000100011…
…101101111101011111
32222001101200002101011
4130320203231331133
51002003444032323
622125242200051
72145355514224
oct347043557537
988041602334
1031013658463
11121754466a7
1260164b3027
132c033a50c8
141702d0d94b
15c17b0720d
hex7388edf5f

31013658463 has 2 divisors, whose sum is σ = 31013658464. Its totient is φ = 31013658462.

The previous prime is 31013658457. The next prime is 31013658503. The reversal of 31013658463 is 36485631013.

It is an a-pointer prime, because the next prime (31013658503) can be obtained adding 31013658463 to its sum of digits (40).

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-31013658463 is a prime.

It is a super-2 number, since 2×310136584632 (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31013628463) by changing a digit.

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 as a sum of consecutive naturals, namely, 15506829231 + 15506829232.

It is an arithmetic number, because the mean of its divisors is an integer number (15506829232).

Almost surely, 231013658463 is an apocalyptic number.

31013658463 is a deficient number, since it is larger than the sum of its proper divisors (1).

31013658463 is an equidigital number, since it uses as much as digits as its factorization.

31013658463 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 155520, while the sum is 40.

The spelling of 31013658463 in words is "thirty-one billion, thirteen million, six hundred fifty-eight thousand, four hundred sixty-three".