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13087889377 = 195312996911
BaseRepresentation
bin11000011000001100…
…10101011111100001
31020210010011200000121
430030012111133201
5203300444430002
610002410520241
7642221136613
oct141406253741
936703150017
1013087889377
115606855002
122653136081
131307665054
148c22c6db3
15519013237
hex30c1957e1

13087889377 has 8 divisors (see below), whose sum is σ = 14036664960. Its totient is φ = 12165107760.

The previous prime is 13087889327. The next prime is 13087889407. The reversal of 13087889377 is 77398878031.

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 13087889377 - 219 = 13087365089 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13087889327) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6497449 + ... + 6499462.

It is an arithmetic number, because the mean of its divisors is an integer number (1754583120).

Almost surely, 213087889377 is an apocalyptic number.

It is an amenable number.

13087889377 is a deficient number, since it is larger than the sum of its proper divisors (948775583).

13087889377 is a wasteful number, since it uses less digits than its factorization.

13087889377 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12996983.

The product of its (nonzero) digits is 14224896, while the sum is 61.

The spelling of 13087889377 in words is "thirteen billion, eighty-seven million, eight hundred eighty-nine thousand, three hundred seventy-seven".

Divisors: 1 19 53 1007 12996911 246941309 688836283 13087889377