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51051105001 = 1379104947387
BaseRepresentation
bin101111100010111000…
…100000101011101001
311212202211122211121201
4233202320200223221
51314023040330001
635241430204201
73455044142551
oct574270405351
9155684584551
1051051105001
111a718021876
129a88ab3661
134a77761250
142684182161
1514dbcbd501
hexbe2e20ae9

51051105001 has 16 divisors (see below), whose sum is σ = 55728288000. Its totient is φ = 46482254208.

The previous prime is 51051104989. The next prime is 51051105019. The reversal of 51051105001 is 10050115015.

It is a happy number.

51051105001 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 51051105001 - 217 = 51050973929 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 51051105001.

It is not an unprimeable number, because it can be changed into a prime (51051105101) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1053630 + ... + 1101016.

It is an arithmetic number, because the mean of its divisors is an integer number (3483018000).

Almost surely, 251051105001 is an apocalyptic number.

It is an amenable number.

51051105001 is a deficient number, since it is larger than the sum of its proper divisors (4677182999).

51051105001 is a wasteful number, since it uses less digits than its factorization.

51051105001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48528.

The product of its (nonzero) digits is 125, while the sum is 19.

The spelling of 51051105001 in words is "fifty-one billion, fifty-one million, one hundred five thousand, one".

Divisors: 1 13 79 1027 1049 13637 47387 82871 616031 1077323 3743573 48666449 49708963 646216519 3927008077 51051105001