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51351355 = 5116831367
BaseRepresentation
bin1100001111100…
…0111100111011
310120121220211001
43003320330323
5101121220410
65032345431
71162323256
oct303707473
9116556731
1051351355
1126a94040
1215245277
13a83c523
146b6a09d
15479533a
hex30f8f3b

51351355 has 16 divisors (see below), whose sum is σ = 67371264. Its totient is φ = 37264480.

The previous prime is 51351253. The next prime is 51351359. The reversal of 51351355 is 55315315.

It is not a de Polignac number, because 51351355 - 29 = 51350843 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51351359) 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, 36882 + ... + 38248.

It is an arithmetic number, because the mean of its divisors is an integer number (4210704).

Almost surely, 251351355 is an apocalyptic number.

51351355 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

51351355 is a deficient number, since it is larger than the sum of its proper divisors (16019909).

51351355 is a wasteful number, since it uses less digits than its factorization.

51351355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2066.

The product of its digits is 5625, while the sum is 28.

The square root of 51351355 is about 7165.9859754259. The cubic root of 51351355 is about 371.6926465604.

The spelling of 51351355 in words is "fifty-one million, three hundred fifty-one thousand, three hundred fifty-five".

Divisors: 1 5 11 55 683 1367 3415 6835 7513 15037 37565 75185 933661 4668305 10270271 51351355