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12919158043 = 111174468913
BaseRepresentation
bin11000000100000101…
…01011010100011011
31020100100200020010221
430002002223110123
5202424301024133
65533542220511
7635102013541
oct140202532433
936310606127
1012919158043
11552a589720
122606724737
1312ab70831c
148a7b23d91
155092d3a2d
hex3020ab51b

12919158043 has 4 divisors (see below), whose sum is σ = 14093626968. Its totient is φ = 11744689120.

The previous prime is 12919158019. The next prime is 12919158101. The reversal of 12919158043 is 34085191921.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-12919158043 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12919158943) 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, 587234446 + ... + 587234467.

It is an arithmetic number, because the mean of its divisors is an integer number (3523406742).

Almost surely, 212919158043 is an apocalyptic number.

12919158043 is a deficient number, since it is larger than the sum of its proper divisors (1174468925).

12919158043 is a wasteful number, since it uses less digits than its factorization.

12919158043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1174468924.

The product of its (nonzero) digits is 77760, while the sum is 43.

The spelling of 12919158043 in words is "twelve billion, nine hundred nineteen million, one hundred fifty-eight thousand, forty-three".

Divisors: 1 11 1174468913 12919158043