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72472925 = 527414131
BaseRepresentation
bin1000101000111…
…01100101011101
312001101000011102
410110131211131
5122023113200
611105202445
71540003220
oct424354535
9161330142
1072472925
11379aaa88
1220330425
13120262b5
1498a75b7
1565686d5
hex451d95d

72472925 has 12 divisors (see below), whose sum is σ = 102704736. Its totient is φ = 49695600.

The previous prime is 72472913. The next prime is 72472937. The reversal of 72472925 is 52927427.

It is an interprime number because it is at equal distance from previous prime (72472913) and next prime (72472937).

It is not a de Polignac number, because 72472925 - 216 = 72407389 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 11 ways as a sum of consecutive naturals, for example, 206891 + ... + 207240.

It is an arithmetic number, because the mean of its divisors is an integer number (8558728).

Almost surely, 272472925 is an apocalyptic number.

It is an amenable number.

72472925 is a deficient number, since it is larger than the sum of its proper divisors (30231811).

72472925 is a wasteful number, since it uses less digits than its factorization.

72472925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 414148 (or 414143 counting only the distinct ones).

The product of its digits is 70560, while the sum is 38.

The square root of 72472925 is about 8513.1031357549. The cubic root of 72472925 is about 416.9256327921.

The spelling of 72472925 in words is "seventy-two million, four hundred seventy-two thousand, nine hundred twenty-five".

Divisors: 1 5 7 25 35 175 414131 2070655 2898917 10353275 14494585 72472925