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13971147316 = 2271268939323
BaseRepresentation
bin11010000001011111…
…01100101000110100
31100001200011211010121
431000233230220310
5212103103203231
610230202101324
71003134535630
oct150057545064
940050154117
1013971147316
115a1a391845
12285aaaa844
131418649199
14967725dc0
1556b834311
hex340beca34

13971147316 has 24 divisors (see below), whose sum is σ = 27945207360. Its totient is φ = 5987010432.

The previous prime is 13971147277. The next prime is 13971147319. The reversal of 13971147316 is 61374117931.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13971147319) 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, 335631 + ... + 374953.

It is an arithmetic number, because the mean of its divisors is an integer number (1164383640).

Almost surely, 213971147316 is an apocalyptic number.

It is an amenable number.

13971147316 is an abundant number, since it is smaller than the sum of its proper divisors (13974060044).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13971147316 is a wasteful number, since it uses less digits than its factorization.

13971147316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52023 (or 52021 counting only the distinct ones).

The product of its digits is 95256, while the sum is 43.

The spelling of 13971147316 in words is "thirteen billion, nine hundred seventy-one million, one hundred forty-seven thousand, three hundred sixteen".

Divisors: 1 2 4 7 14 28 12689 25378 39323 50756 78646 88823 157292 177646 275261 355292 550522 1101044 498969547 997939094 1995878188 3492786829 6985573658 13971147316