Base | Representation |
---|---|
bin | 101011111000… |
… | …1000111111010 |
3 | 1121021220200110 |
4 | 1113301013322 |
5 | 21342221423 |
6 | 2141045150 |
7 | 366363645 |
oct | 127610772 |
9 | 47256613 |
10 | 23007738 |
11 | 11a95066 |
12 | 78567b6 |
13 | 49c7460 |
14 | 30aca5c |
15 | 2047193 |
hex | 15f11fa |
23007738 has 32 divisors (see below), whose sum is σ = 49746816. Its totient is φ = 7051968.
The previous prime is 23007731. The next prime is 23007739. The reversal of 23007738 is 83770032.
It is not an unprimeable number, because it can be changed into a prime (23007731) 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, 30595 + ... + 31337.
It is an arithmetic number, because the mean of its divisors is an integer number (1554588).
Almost surely, 223007738 is an apocalyptic number.
23007738 is an abundant number, since it is smaller than the sum of its proper divisors (26739078).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
23007738 is a wasteful number, since it uses less digits than its factorization.
23007738 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1158.
The product of its (nonzero) digits is 7056, while the sum is 30.
The square root of 23007738 is about 4796.6381977381. The cubic root of 23007738 is about 284.4185869349.
The spelling of 23007738 in words is "twenty-three million, seven thousand, seven hundred thirty-eight".
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