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72196264 = 2372356053
BaseRepresentation
bin1000100110110…
…10000010101000
312000211221122201
410103122002220
5121440240024
611055225544
71534441510
oct423320250
9160757581
1072196264
1137831138
12202182b4
1311c5a3aa
149834840
156511744
hex44da0a8

72196264 has 32 divisors (see below), whose sum is σ = 161435520. Its totient is φ = 29595456.

The previous prime is 72196261. The next prime is 72196291. The reversal of 72196264 is 46269127.

It is a Smith number, since the sum of its digits (37) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (72196261) 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, 26739 + ... + 29314.

It is an arithmetic number, because the mean of its divisors is an integer number (5044860).

Almost surely, 272196264 is an apocalyptic number.

It is an amenable number.

72196264 is an abundant number, since it is smaller than the sum of its proper divisors (89239256).

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

72196264 is a wasteful number, since it uses less digits than its factorization.

72196264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56089 (or 56085 counting only the distinct ones).

The product of its digits is 36288, while the sum is 37.

The square root of 72196264 is about 8496.8384708667. The cubic root of 72196264 is about 416.3944268216.

The spelling of 72196264 in words is "seventy-two million, one hundred ninety-six thousand, two hundred sixty-four".

Divisors: 1 2 4 7 8 14 23 28 46 56 92 161 184 322 644 1288 56053 112106 224212 392371 448424 784742 1289219 1569484 2578438 3138968 5156876 9024533 10313752 18049066 36098132 72196264