Base | Representation |
---|---|
bin | 10101100110011001… |
… | …010110101001100001 |
3 | 2012212100021020001200 |
4 | 111212121112221201 |
5 | 334444321241011 |
6 | 14353221151413 |
7 | 1450511124555 |
oct | 254631265141 |
9 | 65770236050 |
10 | 23192758881 |
11 | 9921787026 |
12 | 45b325b569 |
13 | 2257cac586 |
14 | 11a0347865 |
15 | 90b1d8856 |
hex | 566656a61 |
23192758881 has 12 divisors (see below), whose sum is σ = 33556401060. Its totient is φ = 15436108800.
The previous prime is 23192758871. The next prime is 23192758889. The reversal of 23192758881 is 18885729132.
23192758881 is a `hidden beast` number, since 2 + 31 + 9 + 27 + 588 + 8 + 1 = 666.
It can be written as a sum of positive squares in 2 ways, for example, as 11351837025 + 11840921856 = 106545^2 + 108816^2 .
It is not a de Polignac number, because 23192758881 - 227 = 23058541153 is a prime.
It is a super-2 number, since 2×231927588812 (a number of 22 digits) contains 22 as substring.
It is not an unprimeable number, because it can be changed into a prime (23192758889) 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 11 ways as a sum of consecutive naturals, for example, 2138496 + ... + 2149313.
It is an arithmetic number, because the mean of its divisors is an integer number (2796366755).
Almost surely, 223192758881 is an apocalyptic number.
It is an amenable number.
23192758881 is a deficient number, since it is larger than the sum of its proper divisors (10363642179).
23192758881 is a wasteful number, since it uses less digits than its factorization.
23192758881 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 4288416 (or 4288413 counting only the distinct ones).
The product of its digits is 1935360, while the sum is 54.
The spelling of 23192758881 in words is "twenty-three billion, one hundred ninety-two million, seven hundred fifty-eight thousand, eight hundred eighty-one".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.073 sec. • engine limits •