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72813063 = 388327487
BaseRepresentation
bin1000101011100…
…00101000000111
312002000021202010
410111300220013
5122120004223
611120345303
71542620661
oct425605007
9162007663
1072813063
1138112594
1220475233
131211506b
149955531
1565d4393
hex4570a07

72813063 has 8 divisors (see below), whose sum is σ = 97197568. Its totient is φ = 48485304.

The previous prime is 72813031. The next prime is 72813109. The reversal of 72813063 is 36031827.

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

It is not a de Polignac number, because 72813063 - 25 = 72813031 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 14.

It is a self number, because there is not a number n which added to its sum of digits gives 72813063.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72813163) 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, 11095 + ... + 16392.

It is an arithmetic number, because the mean of its divisors is an integer number (12149696).

Almost surely, 272813063 is an apocalyptic number.

72813063 is a deficient number, since it is larger than the sum of its proper divisors (24384505).

72813063 is a wasteful number, since it uses less digits than its factorization.

72813063 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28373.

The product of its (nonzero) digits is 6048, while the sum is 30.

The square root of 72813063 is about 8533.0570723510. The cubic root of 72813063 is about 417.5768689662.

The spelling of 72813063 in words is "seventy-two million, eight hundred thirteen thousand, sixty-three".

Divisors: 1 3 883 2649 27487 82461 24271021 72813063