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51233884 = 22137113877
BaseRepresentation
bin1100001101110…
…0010001011100
310120101221200021
43003130101130
5101103441014
65030041524
71161323632
oct303342134
9116357607
1051233884
1126a13859
12151a92a4
13a7cac10
146b39352
154770624
hex30dc45c

51233884 has 24 divisors (see below), whose sum is σ = 97923168. Its totient is φ = 23311680.

The previous prime is 51233873. The next prime is 51233891. The reversal of 51233884 is 48833215.

It is a happy number.

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, 3247 + ... + 10630.

It is an arithmetic number, because the mean of its divisors is an integer number (4080132).

Almost surely, 251233884 is an apocalyptic number.

It is an amenable number.

51233884 is a deficient number, since it is larger than the sum of its proper divisors (46689284).

51233884 is a wasteful number, since it uses less digits than its factorization.

51233884 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13965 (or 13963 counting only the distinct ones).

The product of its digits is 23040, while the sum is 34.

The square root of 51233884 is about 7157.7848528717. The cubic root of 51233884 is about 371.4090029984.

The spelling of 51233884 in words is "fifty-one million, two hundred thirty-three thousand, eight hundred eighty-four".

Divisors: 1 2 4 13 26 52 71 142 284 923 1846 3692 13877 27754 55508 180401 360802 721604 985267 1970534 3941068 12808471 25616942 51233884