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19107407023 = 171123965119
BaseRepresentation
bin10001110010111000…
…111110010010101111
31211022121221211212121
4101302320332102233
5303112444011043
612440002013411
71244333165005
oct216270762257
954277854777
1019107407023
1181156a6781
123853047267
131a567a5803
14cd3936a75
1576c703ded
hex472e3e4af

19107407023 has 4 divisors (see below), whose sum is σ = 20231372160. Its totient is φ = 17983441888.

The previous prime is 19107407003. The next prime is 19107407047. The reversal of 19107407023 is 32070470191.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32070470191 = 48259664549.

It is a cyclic number.

It is not a de Polignac number, because 19107407023 - 25 = 19107406991 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 19107407023.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19107407003) 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, 561982543 + ... + 561982576.

It is an arithmetic number, because the mean of its divisors is an integer number (5057843040).

Almost surely, 219107407023 is an apocalyptic number.

19107407023 is a deficient number, since it is larger than the sum of its proper divisors (1123965137).

19107407023 is a wasteful number, since it uses less digits than its factorization.

19107407023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1123965136.

The product of its (nonzero) digits is 10584, while the sum is 34.

The spelling of 19107407023 in words is "nineteen billion, one hundred seven million, four hundred seven thousand, twenty-three".

Divisors: 1 17 1123965119 19107407023