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72370925 = 5211263167
BaseRepresentation
bin1000101000001…
…00101011101101
312001011211020122
410110010223231
5122011332200
611103054325
71536066644
oct424045355
9161154218
1072370925
1137940390
12202a13a5
1311cbba43
14987c35b
156548385
hex4504aed

72370925 has 12 divisors (see below), whose sum is σ = 97898496. Its totient is φ = 52633200.

The previous prime is 72370913. The next prime is 72370933. The reversal of 72370925 is 52907327.

It is not a de Polignac number, because 72370925 - 212 = 72366829 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 131309 + ... + 131858.

It is an arithmetic number, because the mean of its divisors is an integer number (8158208).

Almost surely, 272370925 is an apocalyptic number.

It is an amenable number.

72370925 is a deficient number, since it is larger than the sum of its proper divisors (25527571).

72370925 is a wasteful number, since it uses less digits than its factorization.

72370925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 263188 (or 263183 counting only the distinct ones).

The product of its (nonzero) digits is 26460, while the sum is 35.

The square root of 72370925 is about 8507.1102614225. The cubic root of 72370925 is about 416.7299441676.

The spelling of 72370925 in words is "seventy-two million, three hundred seventy thousand, nine hundred twenty-five".

Divisors: 1 5 11 25 55 275 263167 1315835 2894837 6579175 14474185 72370925