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12919987295 = 57013686159
BaseRepresentation
bin11000000100001011…
…10101110001011111
31020100102020100122222
430002011311301133
5202430004043140
65534012055555
7635112036305
oct140205656137
936312210588
1012919987295
11552aaa5756
122606a645bb
1312ab9388c7
148a7c9c275
155093e95b5
hex302175c5f

12919987295 has 8 divisors (see below), whose sum is σ = 15526105920. Its totient is φ = 10321242400.

The previous prime is 12919987261. The next prime is 12919987313. The reversal of 12919987295 is 59278991921.

12919987295 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12919987295 - 212 = 12919983199 is a prime.

It is a super-2 number, since 2×129199872952 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1839575 + ... + 1846584.

It is an arithmetic number, because the mean of its divisors is an integer number (1940763240).

Almost surely, 212919987295 is an apocalyptic number.

12919987295 is a deficient number, since it is larger than the sum of its proper divisors (2606118625).

12919987295 is an equidigital number, since it uses as much as digits as its factorization.

12919987295 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3686865.

The product of its digits is 7348320, while the sum is 62.

The spelling of 12919987295 in words is "twelve billion, nine hundred nineteen million, nine hundred eighty-seven thousand, two hundred ninety-five".

Divisors: 1 5 701 3505 3686159 18430795 2583997459 12919987295