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712131316 = 221368320051
BaseRepresentation
bin101010011100100…
…100001011110100
31211122000000111221
4222130210023310
52424301200231
6154355240124
723435005411
oct5234441364
91748000457
10712131316
11335a85886
1217a5a9044
13b46c90a0
146a815108
15427bbd11
hex2a7242f4

712131316 has 24 divisors (see below), whose sum is σ = 1344125664. Its totient is φ = 328178400.

The previous prime is 712131281. The next prime is 712131317. The reversal of 712131316 is 613131217.

It is a super-2 number, since 2×7121313162 = 1014262022455783712, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (712131317) 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, 25491 + ... + 45541.

It is an arithmetic number, because the mean of its divisors is an integer number (56005236).

Almost surely, 2712131316 is an apocalyptic number.

It is an amenable number.

712131316 is a deficient number, since it is larger than the sum of its proper divisors (631994348).

712131316 is a wasteful number, since it uses less digits than its factorization.

712131316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20751 (or 20749 counting only the distinct ones).

The product of its digits is 756, while the sum is 25.

The square root of 712131316 is about 26685.7886523895. The cubic root of 712131316 is about 893.0039120408.

Subtracting from 712131316 its reverse (613131217), we obtain a palindrome (99000099).

The spelling of 712131316 in words is "seven hundred twelve million, one hundred thirty-one thousand, three hundred sixteen".

Divisors: 1 2 4 13 26 52 683 1366 2732 8879 17758 20051 35516 40102 80204 260663 521326 1042652 13694833 27389666 54779332 178032829 356065658 712131316