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72827868 = 22310160089
BaseRepresentation
bin1000101011101…
…00001111011100
312002001001001110
410111310033130
5122120442433
611120542020
71543012101
oct425641734
9162031043
1072827868
1138122723
1220481910
131211ba19
14995aaa8
1565d8963
hex45743dc

72827868 has 24 divisors (see below), whose sum is σ = 171617040. Its totient is φ = 24035200.

The previous prime is 72827857. The next prime is 72827869. The reversal of 72827868 is 86872827.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72827869) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28833 + ... + 31256.

It is an arithmetic number, because the mean of its divisors is an integer number (7150710).

Almost surely, 272827868 is an apocalyptic number.

It is an amenable number.

72827868 is an abundant number, since it is smaller than the sum of its proper divisors (98789172).

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

72827868 is a wasteful number, since it uses less digits than its factorization.

72827868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60197 (or 60195 counting only the distinct ones).

The product of its digits is 602112, while the sum is 48.

The square root of 72827868 is about 8533.9245368119. The cubic root of 72827868 is about 417.6051688634.

The spelling of 72827868 in words is "seventy-two million, eight hundred twenty-seven thousand, eight hundred sixty-eight".

Divisors: 1 2 3 4 6 12 101 202 303 404 606 1212 60089 120178 180267 240356 360534 721068 6068989 12137978 18206967 24275956 36413934 72827868