Base | Representation |
---|---|
bin | 10101011111100110… |
… | …010000011010001111 |
3 | 2012120101122110122010 |
4 | 111133212100122033 |
5 | 334231121410222 |
6 | 14334024352303 |
7 | 1444624501440 |
oct | 253746203217 |
9 | 65511573563 |
10 | 23078700687 |
11 | 9873363459 |
12 | 4581015693 |
13 | 223a486013 |
14 | 118d1372c7 |
15 | 9011a880c |
hex | 55f99068f |
23078700687 has 32 divisors (see below), whose sum is σ = 37059978240. Its totient is φ = 12489523200.
The previous prime is 23078700677. The next prime is 23078700709. The reversal of 23078700687 is 78600787032.
It is not a de Polignac number, because 23078700687 - 210 = 23078699663 is a prime.
It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (23078700677) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 187762 + ... + 285327.
It is an arithmetic number, because the mean of its divisors is an integer number (1158124320).
Almost surely, 223078700687 is an apocalyptic number.
23078700687 is a deficient number, since it is larger than the sum of its proper divisors (13981277553).
23078700687 is a wasteful number, since it uses less digits than its factorization.
23078700687 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 473223.
The product of its (nonzero) digits is 790272, while the sum is 48.
The spelling of 23078700687 in words is "twenty-three billion, seventy-eight million, seven hundred thousand, six hundred eighty-seven".
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