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71316652 = 221119233709
BaseRepresentation
bin1000100000000…
…11010010101100
311222012021001111
410100003102230
5121224113102
611024321404
71524116161
oct420032254
9158167044
1071316652
1137290290
121ba73264
1311a0cc04
149686068
1563dacd7
hex44034ac

71316652 has 48 divisors (see below), whose sum is σ = 149587200. Its totient is φ = 29367360.

The previous prime is 71316613. The next prime is 71316659. The reversal of 71316652 is 25661317.

It is not an unprimeable number, because it can be changed into a prime (71316659) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17374 + ... + 21082.

It is an arithmetic number, because the mean of its divisors is an integer number (3116400).

Almost surely, 271316652 is an apocalyptic number.

It is an amenable number.

71316652 is an abundant number, since it is smaller than the sum of its proper divisors (78270548).

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

71316652 is a wasteful number, since it uses less digits than its factorization.

71316652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3766 (or 3764 counting only the distinct ones).

The product of its digits is 7560, while the sum is 31.

The square root of 71316652 is about 8444.9187089042. The cubic root of 71316652 is about 414.6964480747.

Adding to 71316652 its reverse (25661317), we get a palindrome (96977969).

The spelling of 71316652 in words is "seventy-one million, three hundred sixteen thousand, six hundred fifty-two".

Divisors: 1 2 4 11 19 22 23 38 44 46 76 92 209 253 418 437 506 836 874 1012 1748 3709 4807 7418 9614 14836 19228 40799 70471 81598 85307 140942 163196 170614 281884 341228 775181 938377 1550362 1620833 1876754 3100724 3241666 3753508 6483332 17829163 35658326 71316652