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51028074 = 2322834893
BaseRepresentation
bin1100001010101…
…0000001101010
310120000111100200
43002222001222
5101030344244
65021413030
71156505616
oct302520152
9116014320
1051028074
1126893169
121510a176
13a758336
146ac4346
15472e669
hex30aa06a

51028074 has 12 divisors (see below), whose sum is σ = 110560866. Its totient is φ = 17009352.

The previous prime is 51028073. The next prime is 51028079. The reversal of 51028074 is 47082015.

51028074 is a `hidden beast` number, since 510 + 2 + 80 + 74 = 666.

It can be written as a sum of positive squares in only one way, i.e., 51022449 + 5625 = 7143^2 + 75^2 .

It is a super-2 number, since 2×510280742 = 5207728672298952, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (51028073) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1417429 + ... + 1417464.

Almost surely, 251028074 is an apocalyptic number.

51028074 is an abundant number, since it is smaller than the sum of its proper divisors (59532792).

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

51028074 is a wasteful number, since it uses less digits than its factorization.

51028074 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2834901 (or 2834898 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 27.

The square root of 51028074 is about 7143.3937312737. The cubic root of 51028074 is about 370.9110104952.

The spelling of 51028074 in words is "fifty-one million, twenty-eight thousand, seventy-four".

Divisors: 1 2 3 6 9 18 2834893 5669786 8504679 17009358 25514037 51028074