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72583055 = 523631157
BaseRepresentation
bin1000101001110…
…00011110001111
312001120121020022
410110320132033
5122040124210
611111412355
71540642256
oct424703617
9161517208
1072583055
1137a757a6
12203840bb
131206446c
1498d579d
15658b155
hex453878f

72583055 has 8 divisors (see below), whose sum is σ = 90886752. Its totient is φ = 55541728.

The previous prime is 72583051. The next prime is 72583073. The reversal of 72583055 is 55038527.

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 72583055 - 22 = 72583051 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72583051) 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, 315464 + ... + 315693.

It is an arithmetic number, because the mean of its divisors is an integer number (11360844).

Almost surely, 272583055 is an apocalyptic number.

72583055 is a deficient number, since it is larger than the sum of its proper divisors (18303697).

72583055 is a wasteful number, since it uses less digits than its factorization.

72583055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 631185.

The product of its (nonzero) digits is 42000, while the sum is 35.

The square root of 72583055 is about 8519.5689444948. The cubic root of 72583055 is about 417.1367129140.

The spelling of 72583055 in words is "seventy-two million, five hundred eighty-three thousand, fifty-five".

Divisors: 1 5 23 115 631157 3155785 14516611 72583055