Base | Representation |
---|---|
bin | 10010010110101100… |
… | …011101111101111110 |
3 | 1212212111021122121202 |
4 | 102112230131331332 |
5 | 310330233434140 |
6 | 13015341055502 |
7 | 1265246105525 |
oct | 222654357576 |
9 | 55774248552 |
10 | 19708108670 |
11 | 83a3793818 |
12 | 39a0257592 |
13 | 1b21088883 |
14 | d4d6234bc |
15 | 7a530e915 |
hex | 496b1df7e |
19708108670 has 64 divisors (see below), whose sum is σ = 39691192320. Its totient is φ = 7006990848.
The previous prime is 19708108669. The next prime is 19708108681. The reversal of 19708108670 is 7680180791.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 276989 + ... + 340791.
It is an arithmetic number, because the mean of its divisors is an integer number (620174880).
Almost surely, 219708108670 is an apocalyptic number.
19708108670 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
19708108670 is an abundant number, since it is smaller than the sum of its proper divisors (19983083650).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
19708108670 is a wasteful number, since it uses less digits than its factorization.
19708108670 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 63929.
The product of its (nonzero) digits is 169344, while the sum is 47.
The spelling of 19708108670 in words is "nineteen billion, seven hundred eight million, one hundred eight thousand, six hundred seventy".
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