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72528104 = 2311824183
BaseRepresentation
bin1000101001010…
…11000011101000
312001110210212002
410110223003220
5122031344404
611110310132
71540323125
oct424530350
9161423762
1072528104
1137a38490
1220358348
131204544c
1498bd74c
156579c1e
hex452b0e8

72528104 has 16 divisors (see below), whose sum is σ = 148353120. Its totient is φ = 32967280.

The previous prime is 72528091. The next prime is 72528107. The reversal of 72528104 is 40182527.

It is not an unprimeable number, because it can be changed into a prime (72528107) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 412004 + ... + 412179.

It is an arithmetic number, because the mean of its divisors is an integer number (9272070).

Almost surely, 272528104 is an apocalyptic number.

It is an amenable number.

72528104 is an abundant number, since it is smaller than the sum of its proper divisors (75825016).

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

72528104 is a wasteful number, since it uses less digits than its factorization.

72528104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 824200 (or 824196 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 29.

The square root of 72528104 is about 8516.3433467657. The cubic root of 72528104 is about 417.0314180600.

The spelling of 72528104 in words is "seventy-two million, five hundred twenty-eight thousand, one hundred four".

Divisors: 1 2 4 8 11 22 44 88 824183 1648366 3296732 6593464 9066013 18132026 36264052 72528104