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15630560164 = 2237105611893
BaseRepresentation
bin11101000111010011…
…10110101110100100
31111100022122201121201
432203221312232210
5224002410411124
611103001052244
71062224366152
oct164351665644
944308581551
1015630560164
1166a105321a
123042787084
13162138488b
14a83c843d2
1561736c144
hex3a3a76ba4

15630560164 has 12 divisors (see below), whose sum is σ = 28092763804. Its totient is φ = 7604056224.

The previous prime is 15630560161. The next prime is 15630560167. The reversal of 15630560164 is 46106503651.

It is an interprime number because it is at equal distance from previous prime (15630560161) and next prime (15630560167).

It can be written as a sum of positive squares in 2 ways, for example, as 14162904064 + 1467656100 = 119008^2 + 38310^2 .

It is a super-2 number, since 2×156305601642 (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is not an unprimeable number, because it can be changed into a prime (15630560161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52805799 + ... + 52806094.

Almost surely, 215630560164 is an apocalyptic number.

It is an amenable number.

15630560164 is a deficient number, since it is larger than the sum of its proper divisors (12462203640).

15630560164 is a wasteful number, since it uses less digits than its factorization.

15630560164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105611934 (or 105611932 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 37.

The spelling of 15630560164 in words is "fifteen billion, six hundred thirty million, five hundred sixty thousand, one hundred sixty-four".

Divisors: 1 2 4 37 74 148 105611893 211223786 422447572 3907640041 7815280082 15630560164