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51858968 = 2377113043
BaseRepresentation
bin1100010111010…
…0111000011000
310121120201010112
43011310320120
5101233441333
65051303452
71166536220
oct305647030
9117521115
1051858968
1127300457
121544ab88
13a9895a5
146c5d080
154845948
hex3174e18

51858968 has 32 divisors (see below), whose sum is σ = 112700160. Its totient is φ = 21910560.

The previous prime is 51858953. The next prime is 51858979. The reversal of 51858968 is 86985815.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2546 + ... + 10497.

It is an arithmetic number, because the mean of its divisors is an integer number (3521880).

Almost surely, 251858968 is an apocalyptic number.

It is an amenable number.

51858968 is an abundant number, since it is smaller than the sum of its proper divisors (60841192).

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

51858968 is a wasteful number, since it uses less digits than its factorization.

51858968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13127 (or 13123 counting only the distinct ones).

The product of its digits is 691200, while the sum is 50.

The square root of 51858968 is about 7201.3171017530. The cubic root of 51858968 is about 372.9133720102.

The spelling of 51858968 in words is "fifty-one million, eight hundred fifty-eight thousand, nine hundred sixty-eight".

Divisors: 1 2 4 7 8 14 28 56 71 142 284 497 568 994 1988 3976 13043 26086 52172 91301 104344 182602 365204 730408 926053 1852106 3704212 6482371 7408424 12964742 25929484 51858968