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51110828 = 2232213967
BaseRepresentation
bin1100001011111…
…0001110101100
310120011200212122
43002332032230
5101041021303
65023252112
71160302106
oct302761654
9116150778
1051110828
112693a35a
121514a038
13a786bc2
146b06576
154748e38
hex30be3ac

51110828 has 12 divisors (see below), whose sum is σ = 89494272. Its totient is φ = 25541040.

The previous prime is 51110827. The next prime is 51110837. The reversal of 51110828 is 82801115.

It is a super-2 number, since 2×511108282 = 5224633477691168, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 51110797 and 51110806.

It is not an unprimeable number, because it can be changed into a prime (51110821) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10901 + ... + 14867.

It is an arithmetic number, because the mean of its divisors is an integer number (7457856).

Almost surely, 251110828 is an apocalyptic number.

It is an amenable number.

51110828 is a deficient number, since it is larger than the sum of its proper divisors (38383444).

51110828 is a wasteful number, since it uses less digits than its factorization.

51110828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7192 (or 7190 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 26.

The square root of 51110828 is about 7149.1837296296. The cubic root of 51110828 is about 371.1114086263. Note that the first 3 decimals are identical.

The spelling of 51110828 in words is "fifty-one million, one hundred ten thousand, eight hundred twenty-eight".

Divisors: 1 2 4 3221 3967 6442 7934 12884 15868 12777707 25555414 51110828