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13161847457 = 111770384211
BaseRepresentation
bin11000100001000000…
…11101101010100001
31020222021100010102202
430100200131222201
5203423413104312
610014012022545
7644106600053
oct142040355241
936867303382
1013161847457
115644579890
122673a61a55
131319a8b325
148cc0598d3
155207719c2
hex31081daa1

13161847457 has 8 divisors (see below), whose sum is σ = 15202989792. Its totient is φ = 11261473600.

The previous prime is 13161847441. The next prime is 13161847549. The reversal of 13161847457 is 75474816131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13161847457 - 24 = 13161847441 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13161847417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35191919 + ... + 35192292.

It is an arithmetic number, because the mean of its divisors is an integer number (1900373724).

Almost surely, 213161847457 is an apocalyptic number.

13161847457 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

13161847457 is a deficient number, since it is larger than the sum of its proper divisors (2041142335).

13161847457 is a wasteful number, since it uses less digits than its factorization.

13161847457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70384239.

The product of its digits is 564480, while the sum is 47.

The spelling of 13161847457 in words is "thirteen billion, one hundred sixty-one million, eight hundred forty-seven thousand, four hundred fifty-seven".

Divisors: 1 11 17 187 70384211 774226321 1196531587 13161847457