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72302965 = 572065799
BaseRepresentation
bin1000100111101…
…00000101110101
312001001101000121
410103310011311
5122002143330
611101411541
71535364550
oct423640565
9161041017
1072302965
11378a4319
1220269bb1
1311c96b27
149861697
15653317a
hex44f4175

72302965 has 8 divisors (see below), whose sum is σ = 99158400. Its totient is φ = 49579152.

The previous prime is 72302963. The next prime is 72302987. The reversal of 72302965 is 56920327.

It is a happy number.

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

It is not a de Polignac number, because 72302965 - 21 = 72302963 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 72302965.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72302963) 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, 1032865 + ... + 1032934.

It is an arithmetic number, because the mean of its divisors is an integer number (12394800).

Almost surely, 272302965 is an apocalyptic number.

It is an amenable number.

72302965 is a deficient number, since it is larger than the sum of its proper divisors (26855435).

72302965 is a wasteful number, since it uses less digits than its factorization.

72302965 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2065811.

The product of its (nonzero) digits is 22680, while the sum is 34.

The square root of 72302965 is about 8503.1150174510. The cubic root of 72302965 is about 416.5994597381.

The spelling of 72302965 in words is "seventy-two million, three hundred two thousand, nine hundred sixty-five".

Divisors: 1 5 7 35 2065799 10328995 14460593 72302965