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72679648 = 252271239
BaseRepresentation
bin1000101010100…
…00000011100000
312001202111201211
410111100003200
5122101222043
611113435504
71541524006
oct425200340
9161674654
1072679648
1138031328
122040bb94
1312099412
14991ca76
1565a9a9d
hex45500e0

72679648 has 12 divisors (see below), whose sum is σ = 143088120. Its totient is φ = 36339808.

The previous prime is 72679639. The next prime is 72679699. The reversal of 72679648 is 84697627.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1135588 + ... + 1135651.

It is an arithmetic number, because the mean of its divisors is an integer number (11924010).

Almost surely, 272679648 is an apocalyptic number.

It is an amenable number.

72679648 is a deficient number, since it is larger than the sum of its proper divisors (70408472).

72679648 is a wasteful number, since it uses less digits than its factorization.

72679648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2271249 (or 2271241 counting only the distinct ones).

The product of its digits is 1016064, while the sum is 49.

The square root of 72679648 is about 8525.2359498139. The cubic root of 72679648 is about 417.3216717223.

The spelling of 72679648 in words is "seventy-two million, six hundred seventy-nine thousand, six hundred forty-eight".

Divisors: 1 2 4 8 16 32 2271239 4542478 9084956 18169912 36339824 72679648