Base | Representation |
---|---|
bin | 101011110111… |
… | …1101110100010 |
3 | 1121021121211121 |
4 | 1113233232202 |
5 | 21342031033 |
6 | 2141002454 |
7 | 366341164 |
oct | 127575642 |
9 | 47247747 |
10 | 23002018 |
11 | 11a90836 |
12 | 785342a |
13 | 49c4980 |
14 | 30aa934 |
15 | 204562d |
hex | 15efba2 |
23002018 has 8 divisors (see below), whose sum is σ = 37157148. Its totient is φ = 10616304.
The previous prime is 23002013. The next prime is 23002051. The reversal of 23002018 is 81020032.
It is a happy number.
It can be written as a sum of positive squares in 2 ways, for example, as 22724289 + 277729 = 4767^2 + 527^2 .
It is a sphenic number, since it is the product of 3 distinct primes.
It is a junction number, because it is equal to n+sod(n) for n = 23001992 and 23002010.
It is not an unprimeable number, because it can be changed into a prime (23002013) 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, 442321 + ... + 442372.
Almost surely, 223002018 is an apocalyptic number.
23002018 is a deficient number, since it is larger than the sum of its proper divisors (14155130).
23002018 is a wasteful number, since it uses less digits than its factorization.
23002018 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 884708.
The product of its (nonzero) digits is 96, while the sum is 16.
The square root of 23002018 is about 4796.0419097418. The cubic root of 23002018 is about 284.3950150224.
The spelling of 23002018 in words is "twenty-three million, two thousand, eighteen".
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