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72660504 = 2337432503
BaseRepresentation
bin1000101010010…
…11011000011000
312001201112110210
410111023120120
5122100114004
611113211120
71541414130
oct425133030
9161645423
1072660504
1138018a04
1220400aa0
13120907a7
149915ac0
1565a4089
hex454b618

72660504 has 32 divisors (see below), whose sum is σ = 207601920. Its totient is φ = 20760096.

The previous prime is 72660493. The next prime is 72660517. The reversal of 72660504 is 40506627.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 216084 + ... + 216419.

It is an arithmetic number, because the mean of its divisors is an integer number (6487560).

Almost surely, 272660504 is an apocalyptic number.

It is an amenable number.

72660504 is an abundant number, since it is smaller than the sum of its proper divisors (134941416).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

72660504 is a wasteful number, since it uses less digits than its factorization.

72660504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 432519 (or 432515 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 30.

The square root of 72660504 is about 8524.1130916946. The cubic root of 72660504 is about 417.2850273161.

The spelling of 72660504 in words is "seventy-two million, six hundred sixty thousand, five hundred four".

Divisors: 1 2 3 4 6 7 8 12 14 21 24 28 42 56 84 168 432503 865006 1297509 1730012 2595018 3027521 3460024 5190036 6055042 9082563 10380072 12110084 18165126 24220168 36330252 72660504