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72425837 = 1111935519
BaseRepresentation
bin1000101000100…
…10000101101101
312001021121120102
410110102011231
5122020111322
611104200445
71536416021
oct424220555
9161247512
1072425837
1137978670
1220309125
131200aa33
149894381
156559792
hex451216d

72425837 has 8 divisors (see below), whose sum is σ = 79090560. Its totient is φ = 65774560.

The previous prime is 72425833. The next prime is 72425867. The reversal of 72425837 is 73852427.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 72425837 - 22 = 72425833 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 72425837.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72425833) 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 7 ways as a sum of consecutive naturals, for example, 10364 + ... + 15882.

It is an arithmetic number, because the mean of its divisors is an integer number (9886320).

Almost surely, 272425837 is an apocalyptic number.

It is an amenable number.

72425837 is a deficient number, since it is larger than the sum of its proper divisors (6664723).

72425837 is a wasteful number, since it uses less digits than its factorization.

72425837 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6723.

The product of its digits is 94080, while the sum is 38.

The square root of 72425837 is about 8510.3370673552. The cubic root of 72425837 is about 416.8353165459.

The spelling of 72425837 in words is "seventy-two million, four hundred twenty-five thousand, eight hundred thirty-seven".

Divisors: 1 11 1193 5519 13123 60709 6584167 72425837