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72825492 = 22311935087
BaseRepresentation
bin1000101011100…
…11101010010100
312002000220210110
410111303222110
5122120403432
611120523020
71543002135
oct425635224
9162026713
1072825492
1138120963
1220480470
131211a90c
149959c8c
1565d7dcc
hex4573a94

72825492 has 24 divisors (see below), whose sum is σ = 170102016. Its totient is φ = 24250048.

The previous prime is 72825491. The next prime is 72825517. The reversal of 72825492 is 29452827.

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 72825492.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72825491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11773 + ... + 16859.

It is an arithmetic number, because the mean of its divisors is an integer number (7087584).

Almost surely, 272825492 is an apocalyptic number.

It is an amenable number.

72825492 is an abundant number, since it is smaller than the sum of its proper divisors (97276524).

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

72825492 is a wasteful number, since it uses less digits than its factorization.

72825492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6287 (or 6285 counting only the distinct ones).

The product of its digits is 80640, while the sum is 39.

The square root of 72825492 is about 8533.7853265711. The cubic root of 72825492 is about 417.6006273753.

The spelling of 72825492 in words is "seventy-two million, eight hundred twenty-five thousand, four hundred ninety-two".

Divisors: 1 2 3 4 6 12 1193 2386 3579 4772 5087 7158 10174 14316 15261 20348 30522 61044 6068791 12137582 18206373 24275164 36412746 72825492