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14980963861 = 71210999491
BaseRepresentation
bin11011111001110111…
…10101111000010101
31102200001022211000101
431330323311320111
5221140111320421
610514314014101
71040146043323
oct157473657025
942601284011
1014980963861
1163983aa976
122aa1117331
131549912576
14a218aad13
155ca304191
hex37cef5e15

14980963861 has 4 divisors (see below), whose sum is σ = 15191963424. Its totient is φ = 14769964300.

The previous prime is 14980963783. The next prime is 14980963951. The reversal of 14980963861 is 16836908941.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 14980963861 - 223 = 14972575253 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14980963061) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 105499675 + ... + 105499816.

It is an arithmetic number, because the mean of its divisors is an integer number (3797990856).

Almost surely, 214980963861 is an apocalyptic number.

It is an amenable number.

14980963861 is a deficient number, since it is larger than the sum of its proper divisors (210999563).

14980963861 is an equidigital number, since it uses as much as digits as its factorization.

14980963861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210999562.

The product of its (nonzero) digits is 2239488, while the sum is 55.

The spelling of 14980963861 in words is "fourteen billion, nine hundred eighty million, nine hundred sixty-three thousand, eight hundred sixty-one".

Divisors: 1 71 210999491 14980963861