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51053155 = 537275963
BaseRepresentation
bin1100001011000…
…0001001100011
310120001202202121
43002300021203
5101032200110
65022125111
71156642006
oct302601143
9116052677
1051053155
11268aaa9a
1215120797
13a76688a
146acd53d
154736cda
hex30b0263

51053155 has 8 divisors (see below), whose sum is σ = 62919792. Its totient is φ = 39738528.

The previous prime is 51053143. The next prime is 51053161. The reversal of 51053155 is 55135015.

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 51053155 - 27 = 51053027 is a prime.

It is a Duffinian 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, 137797 + ... + 138166.

It is an arithmetic number, because the mean of its divisors is an integer number (7864974).

Almost surely, 251053155 is an apocalyptic number.

51053155 is a deficient number, since it is larger than the sum of its proper divisors (11866637).

51053155 is a wasteful number, since it uses less digits than its factorization.

51053155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 276005.

The product of its (nonzero) digits is 1875, while the sum is 25.

The square root of 51053155 is about 7145.1490537287. The cubic root of 51053155 is about 370.9717698288.

The spelling of 51053155 in words is "fifty-one million, fifty-three thousand, one hundred fifty-five".

Divisors: 1 5 37 185 275963 1379815 10210631 51053155