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19714382879 = 70051281429
BaseRepresentation
bin10010010111000100…
…011001110000011111
31212212221002102012212
4102113010121300133
5310333340223004
613020123351035
71265353326632
oct222704316037
955787072185
1019714382879
1183a7289714
1239a238247b
131b22474619
14d503b7c19
157a5b4d96e
hex497119c1f

19714382879 has 4 divisors (see below), whose sum is σ = 19714734360. Its totient is φ = 19714031400.

The previous prime is 19714382851. The next prime is 19714382893. The reversal of 19714382879 is 97828341791.

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-19714382879 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19714381879) 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, 70664 + ... + 210765.

It is an arithmetic number, because the mean of its divisors is an integer number (4928683590).

Almost surely, 219714382879 is an apocalyptic number.

19714382879 is a deficient number, since it is larger than the sum of its proper divisors (351481).

19714382879 is an equidigital number, since it uses as much as digits as its factorization.

19714382879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 351480.

The product of its digits is 6096384, while the sum is 59.

The spelling of 19714382879 in words is "nineteen billion, seven hundred fourteen million, three hundred eighty-two thousand, eight hundred seventy-nine".

Divisors: 1 70051 281429 19714382879