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72408374 = 2316717431
BaseRepresentation
bin1000101000011…
…01110100110110
312001020201121122
410110031310312
5122014031444
611103543542
71536314063
oct424156466
9161221548
1072408374
1137966535
12202babb2
1312002abc
14988bc6a
1565544ee
hex450dd36

72408374 has 16 divisors (see below), whose sum is σ = 113796096. Its totient is φ = 34511400.

The previous prime is 72408311. The next prime is 72408377. The reversal of 72408374 is 47380427.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72408377) 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, 4562 + ... + 12869.

It is an arithmetic number, because the mean of its divisors is an integer number (7112256).

Almost surely, 272408374 is an apocalyptic number.

72408374 is a deficient number, since it is larger than the sum of its proper divisors (41387722).

72408374 is a wasteful number, since it uses less digits than its factorization.

72408374 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17531.

The product of its (nonzero) digits is 37632, while the sum is 35.

The square root of 72408374 is about 8509.3110179379. The cubic root of 72408374 is about 416.8018120188.

The spelling of 72408374 in words is "seventy-two million, four hundred eight thousand, three hundred seventy-four".

Divisors: 1 2 31 62 67 134 2077 4154 17431 34862 540361 1080722 1167877 2335754 36204187 72408374