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14991241051 = 31483588421
BaseRepresentation
bin11011111011000110…
…00010111101011011
31102200202122221200001
431331203002331123
5221200224203201
610515322153431
71040332306063
oct157543027533
942622587601
1014991241051
1163a318a316
122aa4652877
13154baa0347
14a22dc43a3
155cb184301
hex37d8c2f5b

14991241051 has 4 divisors (see below), whose sum is σ = 15474829504. Its totient is φ = 14507652600.

The previous prime is 14991241039. The next prime is 14991241061. The reversal of 14991241051 is 15014219941.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 15014219941 = 72144888563.

It is a cyclic number.

It is not a de Polignac number, because 14991241051 - 27 = 14991240923 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 14991241051.

It is not an unprimeable number, because it can be changed into a prime (14991241061) 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, 241794180 + ... + 241794241.

It is an arithmetic number, because the mean of its divisors is an integer number (3868707376).

Almost surely, 214991241051 is an apocalyptic number.

14991241051 is a deficient number, since it is larger than the sum of its proper divisors (483588453).

14991241051 is an equidigital number, since it uses as much as digits as its factorization.

14991241051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 483588452.

The product of its (nonzero) digits is 12960, while the sum is 37.

The spelling of 14991241051 in words is "fourteen billion, nine hundred ninety-one million, two hundred forty-one thousand, fifty-one".

Divisors: 1 31 483588421 14991241051