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712107431 = 7239499853
BaseRepresentation
bin101010011100011…
…110010110100111
31211121221210202022
4222130132112213
52424244414211
6154354533355
723434545650
oct5234362647
91747853668
10712107431
11335a69942
1217a59725b
13b46bb259
146a80a527
15427b4bdb
hex2a71e5a7

712107431 has 16 divisors (see below), whose sum is σ = 819840000. Its totient is φ = 605894688.

The previous prime is 712107413. The next prime is 712107433. The reversal of 712107431 is 134701217.

It is a happy number.

It is not a de Polignac number, because 712107431 - 26 = 712107367 is a prime.

It is a super-2 number, since 2×7121074312 = 1014193986570839522, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 712107431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (712107433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 834401 + ... + 835253.

It is an arithmetic number, because the mean of its divisors is an integer number (51240000).

Almost surely, 2712107431 is an apocalyptic number.

712107431 is a deficient number, since it is larger than the sum of its proper divisors (107732569).

712107431 is a wasteful number, since it uses less digits than its factorization.

712107431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1598.

The product of its (nonzero) digits is 1176, while the sum is 26.

The square root of 712107431 is about 26685.3411257941. The cubic root of 712107431 is about 892.9939280971.

Adding to 712107431 its reverse (134701217), we get a palindrome (846808648).

The spelling of 712107431 in words is "seven hundred twelve million, one hundred seven thousand, four hundred thirty-one".

Divisors: 1 7 239 499 853 1673 3493 5971 119261 203867 425647 834827 1427069 2979529 101729633 712107431