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52920225 = 32521912379
BaseRepresentation
bin1100100111011…
…1111110100001
310200120121220100
43021313332201
5102021421400
65130133013
71211546241
oct311677641
9120517810
1052920225
1127965826
1215881169
13ac6b657
147057b21
1549a5100
hex3277fa1

52920225 has 36 divisors (see below), whose sum is σ = 99782800. Its totient is φ = 26736480.

The previous prime is 52920209. The next prime is 52920239. The reversal of 52920225 is 52202925.

It is not a de Polignac number, because 52920225 - 24 = 52920209 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1915 + ... + 10464.

Almost surely, 252920225 is an apocalyptic number.

It is an amenable number.

52920225 is a deficient number, since it is larger than the sum of its proper divisors (46862575).

52920225 is a wasteful number, since it uses less digits than its factorization.

52920225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12414 (or 12406 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The square root of 52920225 is about 7274.6288565122. The cubic root of 52920225 is about 375.4400168252.

The spelling of 52920225 in words is "fifty-two million, nine hundred twenty thousand, two hundred twenty-five".

Divisors: 1 3 5 9 15 19 25 45 57 75 95 171 225 285 475 855 1425 4275 12379 37137 61895 111411 185685 235201 309475 557055 705603 928425 1176005 2116809 2785275 3528015 5880025 10584045 17640075 52920225