Base | Representation |
---|---|
bin | 101100100101… |
… | …1110101010111 |
3 | 1121222210100112 |
4 | 1121023311113 |
5 | 21441114122 |
6 | 2153033235 |
7 | 402502121 |
oct | 131136527 |
9 | 47883315 |
10 | 23379287 |
11 | 12219228 |
12 | 79b581b |
13 | 4ac75c9 |
14 | 3168211 |
15 | 20bc2e2 |
hex | 164bd57 |
23379287 has 4 divisors (see below), whose sum is σ = 23762616. Its totient is φ = 22995960.
The previous prime is 23379283. The next prime is 23379299. The reversal of 23379287 is 78297332.
It is a semiprime because it is the product of two primes.
It is a cyclic number.
It is not a de Polignac number, because 23379287 - 22 = 23379283 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (23379283) 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, 191573 + ... + 191694.
It is an arithmetic number, because the mean of its divisors is an integer number (5940654).
Almost surely, 223379287 is an apocalyptic number.
23379287 is a deficient number, since it is larger than the sum of its proper divisors (383329).
23379287 is an equidigital number, since it uses as much as digits as its factorization.
23379287 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 383328.
The product of its digits is 127008, while the sum is 41.
The square root of 23379287 is about 4835.2132321129. The cubic root of 23379287 is about 285.9414317614.
The spelling of 23379287 in words is "twenty-three million, three hundred seventy-nine thousand, two hundred eighty-seven".
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