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712447581317 = 83104913995849
BaseRepresentation
bin10100101111000010010…
…11110101110010000101
32112002221200211001020012
422113201023311302011
543133043040100232
61303143252120005
7102321054344033
oct12274113656205
92462850731205
10712447581317
112551690a478a
12b60b1306005
1352250262584
14266a8551553
15137ebc899b2
hexa5e12f5c85

712447581317 has 16 divisors (see below), whose sum is σ = 722358000000. Its totient is φ = 702570111744.

The previous prime is 712447581281. The next prime is 712447581341. The reversal of 712447581317 is 713185744217.

712447581317 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 712447581317 - 224 = 712430804101 is a prime.

It is a super-2 number, since 2×7124475813172 (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 (712447511317) 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, 121803809 + ... + 121809657.

It is an arithmetic number, because the mean of its divisors is an integer number (45147375000).

Almost surely, 2712447581317 is an apocalyptic number.

It is an amenable number.

712447581317 is a deficient number, since it is larger than the sum of its proper divisors (9910418683).

712447581317 is a wasteful number, since it uses less digits than its factorization.

712447581317 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8380.

The product of its digits is 1317120, while the sum is 50.

The spelling of 712447581317 in words is "seven hundred twelve billion, four hundred forty-seven million, five hundred eighty-one thousand, three hundred seventeen".

Divisors: 1 83 1049 1399 5849 87067 116117 485467 1467551 6135601 8182751 121806733 509254883 679168333 8583705799 712447581317