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72283067 = 73990179
BaseRepresentation
bin1000100111011…
…11001110111011
312001000100201122
410103233032323
5122001024232
611101135455
71535252543
oct423571673
9161010648
1072283067
113789037a
122025a58b
1311c8aa5c
149858323
15652c312
hex44ef3bb

72283067 has 4 divisors (see below), whose sum is σ = 73273320. Its totient is φ = 71292816.

The previous prime is 72283063. The next prime is 72283069. The reversal of 72283067 is 76038227.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 76038227 = 341322279.

It is a cyclic number.

It is not a de Polignac number, because 72283067 - 22 = 72283063 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72283061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 495017 + ... + 495162.

It is an arithmetic number, because the mean of its divisors is an integer number (18318330).

Almost surely, 272283067 is an apocalyptic number.

72283067 is a deficient number, since it is larger than the sum of its proper divisors (990253).

72283067 is an equidigital number, since it uses as much as digits as its factorization.

72283067 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 990252.

The product of its (nonzero) digits is 28224, while the sum is 35.

The square root of 72283067 is about 8501.9448951402. The cubic root of 72283067 is about 416.5612397444.

The spelling of 72283067 in words is "seventy-two million, two hundred eighty-three thousand, sixty-seven".

Divisors: 1 73 990179 72283067