Base | Representation |
---|---|
bin | 101100110010… |
… | …0011111011001 |
3 | 1122011220220001 |
4 | 1121210133121 |
5 | 22002332111 |
6 | 2155133001 |
7 | 403402426 |
oct | 131443731 |
9 | 48156801 |
10 | 23480281 |
11 | 122880a0 |
12 | 7a44161 |
13 | 4b31576 |
14 | 3192d4d |
15 | 20dc1c1 |
hex | 16647d9 |
23480281 has 16 divisors (see below), whose sum is σ = 27276480. Its totient is φ = 19975680.
The previous prime is 23480269. The next prime is 23480323. The reversal of 23480281 is 18208432.
It is not a de Polignac number, because 23480281 - 27 = 23480153 is a prime.
It is a super-2 number, since 2×234802812 = 1102647191677922, which contains 22 as substring.
It is not an unprimeable number, because it can be changed into a prime (23480081) 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, 57205 + ... + 57613.
It is an arithmetic number, because the mean of its divisors is an integer number (1704780).
Almost surely, 223480281 is an apocalyptic number.
It is an amenable number.
23480281 is a deficient number, since it is larger than the sum of its proper divisors (3796199).
23480281 is a wasteful number, since it uses less digits than its factorization.
23480281 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 744.
The product of its (nonzero) digits is 3072, while the sum is 28.
The square root of 23480281 is about 4845.6455710256. The cubic root of 23480281 is about 286.3525775401.
The spelling of 23480281 in words is "twenty-three million, four hundred eighty thousand, two hundred eighty-one".
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