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19853368670 = 251985336867
BaseRepresentation
bin10010011111010110…
…100101110101011110
31220020121121121212202
4102133112211311132
5311124430244140
613042010331502
71301661564212
oct223726456536
956217547782
1019853368670
118468788803
123a20a29b92
131b451b8135
14d64a36942
157b2e54915
hex49f5a5d5e

19853368670 has 8 divisors (see below), whose sum is σ = 35736063624. Its totient is φ = 7941347464.

The previous prime is 19853368669. The next prime is 19853368687. The reversal of 19853368670 is 7686335891.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 992668424 + ... + 992668443.

It is an arithmetic number, because the mean of its divisors is an integer number (4467007953).

Almost surely, 219853368670 is an apocalyptic number.

19853368670 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

19853368670 is a deficient number, since it is larger than the sum of its proper divisors (15882694954).

19853368670 is a wasteful number, since it uses less digits than its factorization.

19853368670 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1985336874.

The product of its (nonzero) digits is 6531840, while the sum is 56.

The spelling of 19853368670 in words is "nineteen billion, eight hundred fifty-three million, three hundred sixty-eight thousand, six hundred seventy".

Divisors: 1 2 5 10 1985336867 3970673734 9926684335 19853368670