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51025377 = 3131308343
BaseRepresentation
bin1100001010100…
…1010111100001
310120000100122210
43002221113201
5101030303002
65021352333
71156465014
oct302512741
9116010583
1051025377
1126891137
12151086a9
13a757040
146ac337b
15472d96c
hex30a95e1

51025377 has 8 divisors (see below), whose sum is σ = 73267264. Its totient is φ = 31400208.

The previous prime is 51025367. The next prime is 51025399. The reversal of 51025377 is 77352015.

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

It is not a de Polignac number, because 51025377 - 210 = 51024353 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51025367) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 654133 + ... + 654210.

It is an arithmetic number, because the mean of its divisors is an integer number (9158408).

Almost surely, 251025377 is an apocalyptic number.

It is an amenable number.

51025377 is a deficient number, since it is larger than the sum of its proper divisors (22241887).

51025377 is a wasteful number, since it uses less digits than its factorization.

51025377 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1308359.

The product of its (nonzero) digits is 7350, while the sum is 30.

The square root of 51025377 is about 7143.2049529605. The cubic root of 51025377 is about 370.9044757615.

The spelling of 51025377 in words is "fifty-one million, twenty-five thousand, three hundred seventy-seven".

Divisors: 1 3 13 39 1308343 3925029 17008459 51025377