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712312242031 = 13449361733739
BaseRepresentation
bin10100101110110010001…
…11100011111101101111
32112002121021011002122001
422113121013203331233
543132303413221111
61303122015233131
7102314522104615
oct12273107437557
92462537132561
10712312242031
112550a9766335
12b6073b187a7
135222b1c7760
14266945a16b5
15137dee541c1
hexa5d91e3f6f

712312242031 has 16 divisors (see below), whose sum is σ = 769049316000. Its totient is φ = 655853764608.

The previous prime is 712312242007. The next prime is 712312242043. The reversal of 712312242031 is 130242213217.

It is a cyclic number.

It is not a de Polignac number, because 712312242031 - 29 = 712312241519 is a prime.

It is a super-2 number, since 2×7123122420312 (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (712312242331) 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, 21095560 + ... + 21129298.

It is an arithmetic number, because the mean of its divisors is an integer number (48065582250).

Almost surely, 2712312242031 is an apocalyptic number.

712312242031 is a deficient number, since it is larger than the sum of its proper divisors (56737073969).

712312242031 is a wasteful number, since it uses less digits than its factorization.

712312242031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37818.

The product of its (nonzero) digits is 4032, while the sum is 28.

Adding to 712312242031 its reverse (130242213217), we get a palindrome (842554455248).

The spelling of 712312242031 in words is "seven hundred twelve billion, three hundred twelve million, two hundred forty-two thousand, thirty-one".

Divisors: 1 13 449 3617 5837 33739 47021 438607 1624033 15148811 21112429 122033963 196934543 1586441519 54793249387 712312242031