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51028892 = 2225749639
BaseRepresentation
bin1100001010101…
…0001110011100
310120000112110222
43002222032130
5101030411032
65021420512
71156511165
oct302521634
9116015428
1051028892
1126893842
121510a738
13a758815
146ac476c
15472ea12
hex30aa39c

51028892 has 12 divisors (see below), whose sum is σ = 89649840. Its totient is φ = 25414656.

The previous prime is 51028871. The next prime is 51028903. The reversal of 51028892 is 29882015.

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, 23792 + ... + 25847.

It is an arithmetic number, because the mean of its divisors is an integer number (7470820).

Almost surely, 251028892 is an apocalyptic number.

It is an amenable number.

51028892 is a deficient number, since it is larger than the sum of its proper divisors (38620948).

51028892 is a wasteful number, since it uses less digits than its factorization.

51028892 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49900 (or 49898 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 35.

The square root of 51028892 is about 7143.4509867430. The cubic root of 51028892 is about 370.9129924342.

The spelling of 51028892 in words is "fifty-one million, twenty-eight thousand, eight hundred ninety-two".

Divisors: 1 2 4 257 514 1028 49639 99278 198556 12757223 25514446 51028892