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51204982 = 241624451
BaseRepresentation
bin1100001101010…
…1001101110110
310120100111000211
43003111031312
5101102024412
65025300034
71161143443
oct303251566
9116314024
1051204982
11269a4074
121519461a
13a7baa0a
146b2c9ca
154766ca7
hex30d5376

51204982 has 8 divisors (see below), whose sum is σ = 78680952. Its totient is φ = 24978000.

The previous prime is 51204977. The next prime is 51204991. The reversal of 51204982 is 28940215.

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

It is a congruent 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, 312144 + ... + 312307.

It is an arithmetic number, because the mean of its divisors is an integer number (9835119).

Almost surely, 251204982 is an apocalyptic number.

51204982 is a deficient number, since it is larger than the sum of its proper divisors (27475970).

51204982 is a wasteful number, since it uses less digits than its factorization.

51204982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 624494.

The product of its (nonzero) digits is 5760, while the sum is 31.

The square root of 51204982 is about 7155.7656473644. The cubic root of 51204982 is about 371.3391502544.

The spelling of 51204982 in words is "fifty-one million, two hundred four thousand, nine hundred eighty-two".

Divisors: 1 2 41 82 624451 1248902 25602491 51204982