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72327070 = 257232707
BaseRepresentation
bin1000100111110…
…01111110011110
312001002121002101
410103321332132
5122003431240
611102115314
71535525044
oct423717636
9161077071
1072327070
1137910442
122027bb3a
1311ca4aaa
14986a394
15653a39a
hex44f9f9e

72327070 has 8 divisors (see below), whose sum is σ = 130188744. Its totient is φ = 28930824.

The previous prime is 72327043. The next prime is 72327071. The reversal of 72327070 is 7072327.

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

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72327071) 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, 3616344 + ... + 3616363.

It is an arithmetic number, because the mean of its divisors is an integer number (16273593).

Almost surely, 272327070 is an apocalyptic number.

72327070 is a deficient number, since it is larger than the sum of its proper divisors (57861674).

72327070 is a wasteful number, since it uses less digits than its factorization.

72327070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7232714.

The product of its (nonzero) digits is 4116, while the sum is 28.

The square root of 72327070 is about 8504.5323210627. The cubic root of 72327070 is about 416.6457511279.

Adding to 72327070 its reverse (7072327), we get a palindrome (79399397).

The spelling of 72327070 in words is "seventy-two million, three hundred twenty-seven thousand, seventy".

Divisors: 1 2 5 10 7232707 14465414 36163535 72327070