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72248984 = 2359915077
BaseRepresentation
bin1000100111001…
…10111010011000
312000221121222022
410103212322120
5121443431414
611100314012
71535051303
oct423467230
9160847868
1072248984
1137867805
1220242908
1311c783a2
149849b3a
15652218e
hex44e6e98

72248984 has 16 divisors (see below), whose sum is σ = 135702000. Its totient is φ = 36061792.

The previous prime is 72248977. The next prime is 72248999. The reversal of 72248984 is 48984227.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 2747 + ... + 12330.

It is an arithmetic number, because the mean of its divisors is an integer number (8481375).

Almost surely, 272248984 is an apocalyptic number.

It is an amenable number.

72248984 is a deficient number, since it is larger than the sum of its proper divisors (63453016).

72248984 is a wasteful number, since it uses less digits than its factorization.

72248984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15682 (or 15678 counting only the distinct ones).

The product of its digits is 258048, while the sum is 44.

The square root of 72248984 is about 8499.9402350840. The cubic root of 72248984 is about 416.4957569631.

The spelling of 72248984 in words is "seventy-two million, two hundred forty-eight thousand, nine hundred eighty-four".

Divisors: 1 2 4 8 599 1198 2396 4792 15077 30154 60308 120616 9031123 18062246 36124492 72248984