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51233796 = 2234158129
BaseRepresentation
bin1100001101110…
…0010000000100
310120101221120000
43003130100010
5101103440141
65030041300
71161323445
oct303342004
9116357500
1051233796
1126a13789
12151a9230
13a7cab73
146b392cc
1547705b6
hex30dc404

51233796 has 30 divisors (see below), whose sum is σ = 133936110. Its totient is φ = 17077824.

The previous prime is 51233779. The next prime is 51233797. The reversal of 51233796 is 69733215.

It can be written as a sum of positive squares in only one way, i.e., 40144896 + 11088900 = 6336^2 + 3330^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 51233796.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51233797) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 78741 + ... + 79388.

It is an arithmetic number, because the mean of its divisors is an integer number (4464537).

Almost surely, 251233796 is an apocalyptic number.

It is an amenable number.

51233796 is an abundant number, since it is smaller than the sum of its proper divisors (82702314).

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

51233796 is a wasteful number, since it uses less digits than its factorization.

51233796 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158145 (or 158134 counting only the distinct ones).

The product of its digits is 34020, while the sum is 36.

The square root of 51233796 is about 7157.7787057159. The cubic root of 51233796 is about 371.4087903526.

The spelling of 51233796 in words is "fifty-one million, two hundred thirty-three thousand, seven hundred ninety-six".

Divisors: 1 2 3 4 6 9 12 18 27 36 54 81 108 162 324 158129 316258 474387 632516 948774 1423161 1897548 2846322 4269483 5692644 8538966 12808449 17077932 25616898 51233796