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51700925 = 522068037
BaseRepresentation
bin1100010100111…
…0010010111101
310121021200100002
43011032102331
5101213412200
65044044045
71165310363
oct305162275
9117250302
1051700925
1127202741
1215393625
13a932683
146c1b633
154813bd5
hex314e4bd

51700925 has 6 divisors (see below), whose sum is σ = 64109178. Its totient is φ = 41360720.

The previous prime is 51700907. The next prime is 51700937. The reversal of 51700925 is 52900715.

It can be written as a sum of positive squares in 3 ways, for example, as 177241 + 51523684 = 421^2 + 7178^2 .

It is not a de Polignac number, because 51700925 - 28 = 51700669 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1033994 + ... + 1034043.

It is an arithmetic number, because the mean of its divisors is an integer number (10684863).

Almost surely, 251700925 is an apocalyptic number.

It is an amenable number.

51700925 is a deficient number, since it is larger than the sum of its proper divisors (12408253).

51700925 is a wasteful number, since it uses less digits than its factorization.

51700925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2068047 (or 2068042 counting only the distinct ones).

The product of its (nonzero) digits is 3150, while the sum is 29.

The square root of 51700925 is about 7190.3355276371. The cubic root of 51700925 is about 372.5341619946.

It can be divided in two parts, 51700 and 925, that added together give a palindrome (52625).

The spelling of 51700925 in words is "fifty-one million, seven hundred thousand, nine hundred twenty-five".

Divisors: 1 5 25 2068037 10340185 51700925