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712985 = 57131567
BaseRepresentation
bin10101110000100011001
31100020000212
42232010121
5140303420
623140505
76026450
oct2560431
91306025
10712985
11447749
122a4735
131bc6b0
14147b97
15e13c5
hexae119

712985 has 16 divisors (see below), whose sum is σ = 1053696. Its totient is φ = 451008.

The previous prime is 712981. The next prime is 713021. The reversal of 712985 is 589217.

It is a cyclic number.

It is not a de Polignac number, because 712985 - 22 = 712981 is a prime.

It is a super-2 number, since 2×7129852 = 1016695220450, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (712981) 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, 329 + ... + 1238.

It is an arithmetic number, because the mean of its divisors is an integer number (65856).

2712985 is an apocalyptic number.

It is an amenable number.

712985 is a deficient number, since it is larger than the sum of its proper divisors (340711).

712985 is a wasteful number, since it uses less digits than its factorization.

712985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1592.

The product of its digits is 5040, while the sum is 32.

The square root of 712985 is about 844.3843911395. The cubic root of 712985 is about 89.3360605959.

The spelling of 712985 in words is "seven hundred twelve thousand, nine hundred eighty-five".

Divisors: 1 5 7 13 35 65 91 455 1567 7835 10969 20371 54845 101855 142597 712985