Base | Representation |
---|---|
bin | 111011011000100… |
… | …0010100010000001 |
3 | 12010212100212221120 |
4 | 1312301002202001 |
5 | 13040044120123 |
6 | 525415342453 |
7 | 100243352661 |
oct | 16661024201 |
9 | 5125325846 |
10 | 1992566913 |
11 | 932830017 |
12 | 477381a29 |
13 | 259a73c9c |
14 | 14c8c21a1 |
15 | b9de52e3 |
hex | 76c42881 |
1992566913 has 16 divisors (see below), whose sum is σ = 2738916096. Its totient is φ = 1287711360.
The previous prime is 1992566899. The next prime is 1992566963. The reversal of 1992566913 is 3196652991.
It is not a de Polignac number, because 1992566913 - 28 = 1992566657 is a prime.
It is not an unprimeable number, because it can be changed into a prime (1992566963) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32281 + ... + 70902.
It is an arithmetic number, because the mean of its divisors is an integer number (171182256).
Almost surely, 21992566913 is an apocalyptic number.
It is an amenable number.
1992566913 is a deficient number, since it is larger than the sum of its proper divisors (746349183).
1992566913 is a wasteful number, since it uses less digits than its factorization.
1992566913 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 103384.
The product of its digits is 787320, while the sum is 51.
The square root of 1992566913 is about 44638.1777517855. The cubic root of 1992566913 is about 1258.3582617734.
The spelling of 1992566913 in words is "one billion, nine hundred ninety-two million, five hundred sixty-six thousand, nine hundred thirteen".
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