Base | Representation |
---|---|
bin | 10101011111110000… |
… | …110101100110010001 |
3 | 2012120120212101112001 |
4 | 111133300311212101 |
5 | 334232324140244 |
6 | 14334204034001 |
7 | 1444660203265 |
oct | 253760654621 |
9 | 65516771461 |
10 | 23081474449 |
11 | 9874988420 |
12 | 4581b32901 |
13 | 223ac176b7 |
14 | 118d65a0a5 |
15 | 9015555d4 |
hex | 55fc35991 |
23081474449 has 4 divisors (see below), whose sum is σ = 25179790320. Its totient is φ = 20983158580.
The previous prime is 23081474443. The next prime is 23081474501. The reversal of 23081474449 is 94447418032.
It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.
It is a cyclic number.
It is not a de Polignac number, because 23081474449 - 229 = 22544603537 is a prime.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 23081474399 and 23081474408.
It is not an unprimeable number, because it can be changed into a prime (23081474443) 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 3 ways as a sum of consecutive naturals, for example, 1049157919 + ... + 1049157940.
It is an arithmetic number, because the mean of its divisors is an integer number (6294947580).
Almost surely, 223081474449 is an apocalyptic number.
It is an amenable number.
23081474449 is a deficient number, since it is larger than the sum of its proper divisors (2098315871).
23081474449 is a wasteful number, since it uses less digits than its factorization.
23081474449 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2098315870.
The product of its (nonzero) digits is 774144, while the sum is 46.
The spelling of 23081474449 in words is "twenty-three billion, eighty-one million, four hundred seventy-four thousand, four hundred forty-nine".
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