Base | Representation |
---|---|
bin | 10101100010010101… |
… | …110001010100011001 |
3 | 2012200121020000110222 |
4 | 111202111301110121 |
5 | 334324411220211 |
6 | 14342350445425 |
7 | 1446023540402 |
oct | 254225612431 |
9 | 65617200428 |
10 | 23124710681 |
11 | 9897329446 |
12 | 4594503875 |
13 | 2246b75277 |
14 | 11952b29a9 |
15 | 9052461db |
hex | 562571519 |
23124710681 has 4 divisors (see below), whose sum is σ = 23336864100. Its totient is φ = 22912557264.
The previous prime is 23124710671. The next prime is 23124710729. The reversal of 23124710681 is 18601742132.
It is a semiprime because it is the product of two primes.
It can be written as a sum of positive squares in 2 ways, for example, as 18846896656 + 4277814025 = 137284^2 + 65405^2 .
It is a cyclic number.
It is not a de Polignac number, because 23124710681 - 230 = 22050968857 is a prime.
It is a super-2 number, since 2×231247106812 (a number of 22 digits) contains 22 as substring.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (23124710621) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 106076546 + ... + 106076763.
It is an arithmetic number, because the mean of its divisors is an integer number (5834216025).
Almost surely, 223124710681 is an apocalyptic number.
It is an amenable number.
23124710681 is a deficient number, since it is larger than the sum of its proper divisors (212153419).
23124710681 is a wasteful number, since it uses less digits than its factorization.
23124710681 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 212153418.
The product of its (nonzero) digits is 16128, while the sum is 35.
The spelling of 23124710681 in words is "twenty-three billion, one hundred twenty-four million, seven hundred ten thousand, six hundred eighty-one".
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