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72007925 = 5211261847
BaseRepresentation
bin1000100101011…
…00000011110101
312000111101022012
410102230003311
5121413223200
611051214005
71533025433
oct422540365
9160441265
1072007925
1137712690
1220147305
1311bc2752
1497c5d53
1564c5a35
hex44ac0f5

72007925 has 12 divisors (see below), whose sum is σ = 97407456. Its totient is φ = 52369200.

The previous prime is 72007919. The next prime is 72007927. The reversal of 72007925 is 52970027.

It is not a de Polignac number, because 72007925 - 24 = 72007909 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 72007891 and 72007900.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72007927) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 130649 + ... + 131198.

It is an arithmetic number, because the mean of its divisors is an integer number (8117288).

Almost surely, 272007925 is an apocalyptic number.

It is an amenable number.

72007925 is a deficient number, since it is larger than the sum of its proper divisors (25399531).

72007925 is a wasteful number, since it uses less digits than its factorization.

72007925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 261868 (or 261863 counting only the distinct ones).

The product of its (nonzero) digits is 8820, while the sum is 32.

The square root of 72007925 is about 8485.7483464925. The cubic root of 72007925 is about 416.0320276285.

The spelling of 72007925 in words is "seventy-two million, seven thousand, nine hundred twenty-five".

Divisors: 1 5 11 25 55 275 261847 1309235 2880317 6546175 14401585 72007925