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51152311055 = 529352774559
BaseRepresentation
bin101111101000111010…
…100101001100001111
311220000220002122020002
4233220322211030033
51314224442423210
635255443314515
73460413320126
oct575072451417
9156026078202
1051152311055
111a76a16743a
129ab697ba3b
134a927079a1
1426937a8abd
1514e5b104a5
hexbe8ea530f

51152311055 has 8 divisors (see below), whose sum is σ = 63499420800. Its totient is φ = 39510750496.

The previous prime is 51152311031. The next prime is 51152311123. The reversal of 51152311055 is 55011325115.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 51152311055 - 218 = 51152048911 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 176387135 + ... + 176387424.

It is an arithmetic number, because the mean of its divisors is an integer number (7937427600).

Almost surely, 251152311055 is an apocalyptic number.

51152311055 is a deficient number, since it is larger than the sum of its proper divisors (12347109745).

51152311055 is a wasteful number, since it uses less digits than its factorization.

51152311055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 352774593.

The product of its (nonzero) digits is 3750, while the sum is 29.

The spelling of 51152311055 in words is "fifty-one billion, one hundred fifty-two million, three hundred eleven thousand, fifty-five".

Divisors: 1 5 29 145 352774559 1763872795 10230462211 51152311055