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13012510161 = 377175111621
BaseRepresentation
bin11000001111001101…
…10010010111010001
31020120212100000011210
430013212302113101
5203122200311121
65551115130333
7640314340260
oct140746622721
936525300153
1013012510161
11557824a532
122631a439a9
1312c4b61c71
148b62a45d7
155125c3876
hex3079b25d1

13012510161 has 32 divisors (see below), whose sum is σ = 20136370176. Its totient is φ = 7320600000.

The previous prime is 13012510097. The next prime is 13012510169. The reversal of 13012510161 is 16101521031.

It is a happy number.

13012510161 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13012510161 - 26 = 13012510097 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (13012510169) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 1113931 + ... + 1125551.

It is an arithmetic number, because the mean of its divisors is an integer number (629261568).

Almost surely, 213012510161 is an apocalyptic number.

It is an amenable number.

13012510161 is a deficient number, since it is larger than the sum of its proper divisors (7123860015).

13012510161 is a wasteful number, since it uses less digits than its factorization.

13012510161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12453.

The product of its (nonzero) digits is 180, while the sum is 21.

The spelling of 13012510161 in words is "thirteen billion, twelve million, five hundred ten thousand, one hundred sixty-one".

Divisors: 1 3 7 21 71 213 497 751 1491 2253 5257 11621 15771 34863 53321 81347 159963 244041 373247 825091 1119741 2475273 5775637 8727371 17326911 26182113 61091597 183274791 619643341 1858930023 4337503387 13012510161