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72231714 = 2324012873
BaseRepresentation
bin1000100111000…
…10101100100010
312000220202021200
410103202230202
5121442403324
611100102030
71534650042
oct423425442
9160822250
1072231714
1137855835
1220234916
1311c70579
149843722
15651bec9
hex44e2b22

72231714 has 12 divisors (see below), whose sum is σ = 156502086. Its totient is φ = 24077232.

The previous prime is 72231713. The next prime is 72231781. The reversal of 72231714 is 41713227.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 63920025 + 8311689 = 7995^2 + 2883^2 .

It is not an unprimeable number, because it can be changed into a prime (72231713) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2006419 + ... + 2006454.

Almost surely, 272231714 is an apocalyptic number.

72231714 is an abundant number, since it is smaller than the sum of its proper divisors (84270372).

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

72231714 is a wasteful number, since it uses less digits than its factorization.

72231714 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4012881 (or 4012878 counting only the distinct ones).

The product of its digits is 2352, while the sum is 27.

The square root of 72231714 is about 8498.9242848728. The cubic root of 72231714 is about 416.4625686997.

The spelling of 72231714 in words is "seventy-two million, two hundred thirty-one thousand, seven hundred fourteen".

Divisors: 1 2 3 6 9 18 4012873 8025746 12038619 24077238 36115857 72231714