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12530347423 = 1159910631789
BaseRepresentation
bin10111010101101110…
…11110110110011111
31012100021001121020121
423222313132312133
5201130232104143
65431212455411
7622341124066
oct135267366637
935307047217
1012530347423
115350066530
12251847a567
131248cb3a79
1486c2331dd
154d50d07ed
hex2eadded9f

12530347423 has 16 divisors (see below), whose sum is σ = 13712832000. Its totient is φ = 11355158880.

The previous prime is 12530347409. The next prime is 12530347433. The reversal of 12530347423 is 32474303521.

It is a cyclic number.

It is not a de Polignac number, because 12530347423 - 221 = 12528250271 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12530347433) 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, 7003213 + ... + 7005001.

It is an arithmetic number, because the mean of its divisors is an integer number (857052000).

Almost surely, 212530347423 is an apocalyptic number.

12530347423 is a deficient number, since it is larger than the sum of its proper divisors (1182484577).

12530347423 is a wasteful number, since it uses less digits than its factorization.

12530347423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3462.

The product of its (nonzero) digits is 60480, while the sum is 34.

It can be divided in two parts, 12530 and 347423, that added together give a palindrome (359953).

The spelling of 12530347423 in words is "twelve billion, five hundred thirty million, three hundred forty-seven thousand, four hundred twenty-three".

Divisors: 1 11 599 1063 1789 6589 11693 19679 636737 1071611 1901707 7004107 11787721 20918777 1139122493 12530347423