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12871710473 = 73176324801
BaseRepresentation
bin10111111110011011…
…01011011100001001
31020020001101122022112
423333031223130021
5202330124213343
65525125232105
7633654506456
oct137715533411
936201348275
1012871710473
115505821656
1225b2862635
1312a193493b
148a16d282d
15505060218
hex2ff36b709

12871710473 has 4 divisors (see below), whose sum is σ = 13048035348. Its totient is φ = 12695385600.

The previous prime is 12871710419. The next prime is 12871710491. The reversal of 12871710473 is 37401717821.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 37401717821 = 132877055217.

It can be written as a sum of positive squares in 2 ways, for example, as 2954139904 + 9917570569 = 54352^2 + 99587^2 .

It is a cyclic number.

It is not a de Polignac number, because 12871710473 - 212 = 12871706377 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12871710473.

It is not an unprimeable number, because it can be changed into a prime (12871710403) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 88162328 + ... + 88162473.

It is an arithmetic number, because the mean of its divisors is an integer number (3262008837).

Almost surely, 212871710473 is an apocalyptic number.

It is an amenable number.

12871710473 is a deficient number, since it is larger than the sum of its proper divisors (176324875).

12871710473 is an equidigital number, since it uses as much as digits as its factorization.

12871710473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 176324874.

The product of its (nonzero) digits is 65856, while the sum is 41.

The spelling of 12871710473 in words is "twelve billion, eight hundred seventy-one million, seven hundred ten thousand, four hundred seventy-three".

Divisors: 1 73 176324801 12871710473