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51102354041 = 199925563959
BaseRepresentation
bin101111100101111100…
…000000101001111001
311212220102002120002022
4233211330000221321
51314124200312131
635250500444225
73456235561634
oct574574005171
9155812076068
1051102354041
111a743a45a52
129aa20a9675
134a8526601b
14268acc2c1b
1514e154337b
hexbe5f00a79

51102354041 has 4 divisors (see below), whose sum is σ = 51127920000. Its totient is φ = 51076788084.

The previous prime is 51102354007. The next prime is 51102354047. The reversal of 51102354041 is 14045320115.

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 51102354041 - 210 = 51102353017 is a prime.

It is a super-2 number, since 2×511023540412 (a number of 22 digits) contains 22 as substring.

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 51102354041.

It is not an unprimeable number, because it can be changed into a prime (51102354047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12779981 + ... + 12783978.

It is an arithmetic number, because the mean of its divisors is an integer number (12781980000).

Almost surely, 251102354041 is an apocalyptic number.

It is an amenable number.

51102354041 is a deficient number, since it is larger than the sum of its proper divisors (25565959).

51102354041 is a wasteful number, since it uses less digits than its factorization.

51102354041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25565958.

The product of its (nonzero) digits is 2400, while the sum is 26.

Adding to 51102354041 its reverse (14045320115), we get a palindrome (65147674156).

The spelling of 51102354041 in words is "fifty-one billion, one hundred two million, three hundred fifty-four thousand, forty-one".

Divisors: 1 1999 25563959 51102354041