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13877071465 = 54216592433
BaseRepresentation
bin11001110110010001…
…10100111001101001
31022211010011021022211
430323020310321221
5211410012241330
610213001445121
71000613106205
oct147310647151
938733137284
1013877071465
115981277204
1228334a07a1
131401ccacba
14959037b05
1556344ed2a
hex33b234e69

13877071465 has 8 divisors (see below), whose sum is σ = 16692042888. Its totient is φ = 11075285760.

The previous prime is 13877071393. The next prime is 13877071489. The reversal of 13877071465 is 56417077831.

It can be written as a sum of positive squares in 4 ways, for example, as 502611561 + 13374459904 = 22419^2 + 115648^2 .

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

It is not a de Polignac number, because 13877071465 - 27 = 13877071337 is a prime.

It is a super-2 number, since 2×138770714652 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3294112 + ... + 3298321.

It is an arithmetic number, because the mean of its divisors is an integer number (2086505361).

Almost surely, 213877071465 is an apocalyptic number.

It is an amenable number.

13877071465 is a deficient number, since it is larger than the sum of its proper divisors (2814971423).

13877071465 is an equidigital number, since it uses as much as digits as its factorization.

13877071465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6592859.

The product of its (nonzero) digits is 987840, while the sum is 49.

The spelling of 13877071465 in words is "thirteen billion, eight hundred seventy-seven million, seventy-one thousand, four hundred sixty-five".

Divisors: 1 5 421 2105 6592433 32962165 2775414293 13877071465