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72298974 = 23111095439
BaseRepresentation
bin1000100111100…
…11000111011110
312001001011112210
410103303013132
5122002031344
611101341250
71535350116
oct423630736
9161034483
1072298974
11378a1320
1220267826
1311c95077
149860046
156531db9
hex44f31de

72298974 has 16 divisors (see below), whose sum is σ = 157743360. Its totient is φ = 21908760.

The previous prime is 72298973. The next prime is 72298987. The reversal of 72298974 is 47989227.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72298973) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 547654 + ... + 547785.

It is an arithmetic number, because the mean of its divisors is an integer number (9858960).

Almost surely, 272298974 is an apocalyptic number.

72298974 is an abundant number, since it is smaller than the sum of its proper divisors (85444386).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

72298974 is a wasteful number, since it uses less digits than its factorization.

72298974 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1095455.

The product of its digits is 508032, while the sum is 48.

The square root of 72298974 is about 8502.8803355098. The cubic root of 72298974 is about 416.5917944045.

The spelling of 72298974 in words is "seventy-two million, two hundred ninety-eight thousand, nine hundred seventy-four".

Divisors: 1 2 3 6 11 22 33 66 1095439 2190878 3286317 6572634 12049829 24099658 36149487 72298974