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51057498 = 238509583
BaseRepresentation
bin1100001011000…
…1001101011010
310120001222201110
43002301031122
5101032314443
65022201150
71156660452
oct302611532
9116058643
1051057498
1126903288
12151231b6
13a76884b
146ad0d62
154738233
hex30b135a

51057498 has 8 divisors (see below), whose sum is σ = 102115008. Its totient is φ = 17019164.

The previous prime is 51057481. The next prime is 51057509. The reversal of 51057498 is 89475015.

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

51057498 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4254786 + ... + 4254797.

It is an arithmetic number, because the mean of its divisors is an integer number (12764376).

Almost surely, 251057498 is an apocalyptic number.

51057498 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51057498 is a wasteful number, since it uses less digits than its factorization.

51057498 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8509588.

The product of its (nonzero) digits is 50400, while the sum is 39.

The square root of 51057498 is about 7145.4529597500. The cubic root of 51057498 is about 370.9822888308.

The spelling of 51057498 in words is "fifty-one million, fifty-seven thousand, four hundred ninety-eight".

Divisors: 1 2 3 6 8509583 17019166 25528749 51057498