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14785113131 = 19778163849
BaseRepresentation
bin11011100010100001…
…01110110000101011
31102011101210120022122
431301100232300223
5220234442110011
610443040141455
71032250250045
oct156120566053
942141716278
1014785113131
1162a78a1368
122a4760788b
13151817ba69
14a03888a95
155b80193db
hex37142ec2b

14785113131 has 4 divisors (see below), whose sum is σ = 15563277000. Its totient is φ = 14006949264.

The previous prime is 14785113127. The next prime is 14785113143. The reversal of 14785113131 is 13131158741.

14785113131 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 14785113131 - 22 = 14785113127 is a prime.

It is a super-2 number, since 2×147851131312 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 14785113091 and 14785113100.

It is not an unprimeable number, because it can be changed into a prime (14785113121) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 389081906 + ... + 389081943.

It is an arithmetic number, because the mean of its divisors is an integer number (3890819250).

Almost surely, 214785113131 is an apocalyptic number.

14785113131 is a deficient number, since it is larger than the sum of its proper divisors (778163869).

14785113131 is an equidigital number, since it uses as much as digits as its factorization.

14785113131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 778163868.

The product of its digits is 10080, while the sum is 35.

The spelling of 14785113131 in words is "fourteen billion, seven hundred eighty-five million, one hundred thirteen thousand, one hundred thirty-one".

Divisors: 1 19 778163849 14785113131