Base | Representation |
---|---|
bin | 101100000110… |
… | …1010101000111 |
3 | 1121111210011110 |
4 | 1120031111013 |
5 | 21404421041 |
6 | 2143340103 |
7 | 400354533 |
oct | 130152507 |
9 | 47453143 |
10 | 23123271 |
11 | 12063946 |
12 | 78b1633 |
13 | 4a37c12 |
14 | 30dcbc3 |
15 | 206b516 |
hex | 160d547 |
23123271 has 16 divisors (see below), whose sum is σ = 31371264. Its totient is φ = 15148224.
The previous prime is 23123251. The next prime is 23123273. The reversal of 23123271 is 17232132.
It is not a de Polignac number, because 23123271 - 25 = 23123239 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (23123273) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 51976 + ... + 52418.
It is an arithmetic number, because the mean of its divisors is an integer number (1960704).
Almost surely, 223123271 is an apocalyptic number.
23123271 is a deficient number, since it is larger than the sum of its proper divisors (8247993).
23123271 is a wasteful number, since it uses less digits than its factorization.
23123271 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 710.
The product of its digits is 504, while the sum is 21.
The square root of 23123271 is about 4808.6662391977. Note that the first 3 decimals coincide. The cubic root of 23123271 is about 284.8938601377.
The spelling of 23123271 in words is "twenty-three million, one hundred twenty-three thousand, two hundred seventy-one".
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