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13147089851 = 71878155693
BaseRepresentation
bin11000011111010000…
…01010101110111011
31020221020120100210202
430033220022232323
5203411123333401
610012323432415
7643540264010
oct141750125673
936836510722
1013147089851
11563720a215
12266ab2570b
1313169c210c
148ca0d7707
1551e30906b
hex30fa0abbb

13147089851 has 4 divisors (see below), whose sum is σ = 15025245552. Its totient is φ = 11268934152.

The previous prime is 13147089817. The next prime is 13147089871. The reversal of 13147089851 is 15898074131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 15898074131 = 31512841101.

It is not a de Polignac number, because 13147089851 - 222 = 13142895547 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13147089796 and 13147089805.

It is not an unprimeable number, because it can be changed into a prime (13147089871) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 939077840 + ... + 939077853.

It is an arithmetic number, because the mean of its divisors is an integer number (3756311388).

Almost surely, 213147089851 is an apocalyptic number.

13147089851 is a deficient number, since it is larger than the sum of its proper divisors (1878155701).

13147089851 is an equidigital number, since it uses as much as digits as its factorization.

13147089851 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1878155700.

The product of its (nonzero) digits is 241920, while the sum is 47.

The spelling of 13147089851 in words is "thirteen billion, one hundred forty-seven million, eighty-nine thousand, eight hundred fifty-one".

Divisors: 1 7 1878155693 13147089851