Base | Representation |
---|---|
bin | 10101101010001010… |
… | …111100100010110101 |
3 | 2020000202102211010111 |
4 | 111222022330202311 |
5 | 340112024401210 |
6 | 14403402423021 |
7 | 1452210340003 |
oct | 255212744265 |
9 | 66022384114 |
10 | 23256090805 |
11 | 9954503262 |
12 | 4610501a71 |
13 | 2268154c9c |
14 | 11a8911a73 |
15 | 911a4888a |
hex | 56a2bc8b5 |
23256090805 has 8 divisors (see below), whose sum is σ = 28063216800. Its totient is φ = 18500934096.
The previous prime is 23256090791. The next prime is 23256090833. The reversal of 23256090805 is 50809065232.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-23256090805 is a prime.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12991335 + ... + 12993124.
It is an arithmetic number, because the mean of its divisors is an integer number (3507902100).
Almost surely, 223256090805 is an apocalyptic number.
It is an amenable number.
23256090805 is a deficient number, since it is larger than the sum of its proper divisors (4807125995).
23256090805 is a wasteful number, since it uses less digits than its factorization.
23256090805 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 25984643.
The product of its (nonzero) digits is 129600, while the sum is 40.
The spelling of 23256090805 in words is "twenty-three billion, two hundred fifty-six million, ninety thousand, eight hundred five".
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