Base | Representation |
---|---|
bin | 101011110100… |
… | …0111001001111 |
3 | 1121020012110001 |
4 | 1113220321033 |
5 | 21340132111 |
6 | 2140225131 |
7 | 366163453 |
oct | 127507117 |
9 | 47205401 |
10 | 22974031 |
11 | 11a71803 |
12 | 783b1a7 |
13 | 49b5002 |
14 | 30a0663 |
15 | 203c1c1 |
hex | 15e8e4f |
22974031 has 4 divisors (see below), whose sum is σ = 22984200. Its totient is φ = 22963864.
The previous prime is 22974011. The next prime is 22974037. The reversal of 22974031 is 13047922.
22974031 is a nontrivial binomial coefficient, being equal to C(6779, 2).
It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.
It is not a de Polignac number, because 22974031 - 25 = 22973999 is a prime.
It is a super-2 number, since 2×229740312 = 1055612200777922, which contains 22 as substring.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (22974037) 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, 1 + ... + 6778.
It is an arithmetic number, because the mean of its divisors is an integer number (5746050).
Almost surely, 222974031 is an apocalyptic number.
22974031 is the 6778-th triangular number.
22974031 is the 2260-th centered nonagonal number.
22974031 is a deficient number, since it is larger than the sum of its proper divisors (10169).
22974031 is an equidigital number, since it uses as much as digits as its factorization.
22974031 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 10168.
The product of its (nonzero) digits is 3024, while the sum is 28.
The square root of 22974031 is about 4793.1233032335. The cubic root of 22974031 is about 284.2796252398.
It can be divided in two parts, 2297 and 4031, that added together give a triangular number (6328 = T112).
The spelling of 22974031 in words is "twenty-two million, nine hundred seventy-four thousand, thirty-one".
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