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72314407 = 116574037
BaseRepresentation
bin1000100111101…
…10111000100111
312001001221201101
410103312320213
5122003030112
611101540531
71535443114
oct423667047
9161057641
1072314407
1137901980
1220274747
1311c9c0b9
14986590b
156536757
hex44f6e27

72314407 has 4 divisors (see below), whose sum is σ = 78888456. Its totient is φ = 65740360.

The previous prime is 72314393. The next prime is 72314441. The reversal of 72314407 is 70441327.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 70441327 = 116403757.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-72314407 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72314477) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3287008 + ... + 3287029.

It is an arithmetic number, because the mean of its divisors is an integer number (19722114).

Almost surely, 272314407 is an apocalyptic number.

72314407 is a deficient number, since it is larger than the sum of its proper divisors (6574049).

72314407 is a wasteful number, since it uses less digits than its factorization.

72314407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6574048.

The product of its (nonzero) digits is 4704, while the sum is 28.

The square root of 72314407 is about 8503.7878030910. The cubic root of 72314407 is about 416.6214343076.

Subtracting from 72314407 its reverse (70441327), we obtain a triangular number (1873080 = T1935).

The spelling of 72314407 in words is "seventy-two million, three hundred fourteen thousand, four hundred seven".

Divisors: 1 11 6574037 72314407