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12715023429 = 321412780381
BaseRepresentation
bin10111101011101111…
…11101110001000101
31012211010120010002200
423311313331301011
5202020021222204
65501411025113
7630042626103
oct136567756105
935733503080
1012715023429
115435332329
12256a29b199
131278334104
14888986c73
154e640e539
hex2f5dfdc45

12715023429 has 6 divisors (see below), whose sum is σ = 18366144966. Its totient is φ = 8476682280.

The previous prime is 12715023341. The next prime is 12715023449. The reversal of 12715023429 is 92432051721.

12715023429 is a `hidden beast` number, since 127 + 1 + 502 + 3 + 4 + 29 = 666.

It can be written as a sum of positive squares in only one way, i.e., 8322912900 + 4392110529 = 91230^2 + 66273^2 .

It is not a de Polignac number, because 12715023429 - 27 = 12715023301 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12715023393 and 12715023402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12715023449) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 706390182 + ... + 706390199.

It is an arithmetic number, because the mean of its divisors is an integer number (3061024161).

Almost surely, 212715023429 is an apocalyptic number.

It is an amenable number.

12715023429 is a deficient number, since it is larger than the sum of its proper divisors (5651121537).

12715023429 is a wasteful number, since it uses less digits than its factorization.

12715023429 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1412780387 (or 1412780384 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The spelling of 12715023429 in words is "twelve billion, seven hundred fifteen million, twenty-three thousand, four hundred twenty-nine".

Divisors: 1 3 9 1412780381 4238341143 12715023429