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72604053 = 3312012239
BaseRepresentation
bin1000101001111…
…01100110010101
312001121200001000
410110331212111
5122041312203
611112053513
71541060424
oct424754625
9161550030
1072604053
1137a8a555
1220394299
1312070ba2
1498dd2bb
1565924a3
hex453d995

72604053 has 16 divisors (see below), whose sum is σ = 107699200. Its totient is φ = 48340800.

The previous prime is 72604039. The next prime is 72604057. The reversal of 72604053 is 35040627.

It is a happy number.

72604053 is a `hidden beast` number, since 7 + 2 + 604 + 0 + 53 = 666.

It is not a de Polignac number, because 72604053 - 210 = 72603029 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72604057) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31308 + ... + 33546.

It is an arithmetic number, because the mean of its divisors is an integer number (6731200).

Almost surely, 272604053 is an apocalyptic number.

It is an amenable number.

72604053 is a deficient number, since it is larger than the sum of its proper divisors (35095147).

72604053 is a wasteful number, since it uses less digits than its factorization.

72604053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3449 (or 3443 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 27.

The square root of 72604053 is about 8520.8011947234. The cubic root of 72604053 is about 417.1769343871.

The spelling of 72604053 in words is "seventy-two million, six hundred four thousand, fifty-three".

Divisors: 1 3 9 27 1201 2239 3603 6717 10809 20151 32427 60453 2689039 8067117 24201351 72604053