Base | Representation |
---|---|
bin | 101101100010… |
… | …1100111110011 |
3 | 1122221010122020 |
4 | 1123011213303 |
5 | 22103100011 |
6 | 2211442523 |
7 | 406650354 |
oct | 133054763 |
9 | 48833566 |
10 | 23878131 |
11 | 12529aa2 |
12 | 7bb6443 |
13 | 4c40694 |
14 | 3257d2b |
15 | 216a006 |
hex | 16c59f3 |
23878131 has 8 divisors (see below), whose sum is σ = 31874304. Its totient is φ = 15900360.
The previous prime is 23878123. The next prime is 23878139. The reversal of 23878131 is 13187832.
It is an interprime number because it is at equal distance from previous prime (23878123) and next prime (23878139).
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 23878131 - 23 = 23878123 is a prime.
It is a super-2 number, since 2×238781312 = 1140330280106322, which contains 22 as substring.
It is a junction number, because it is equal to n+sod(n) for n = 23878092 and 23878101.
It is not an unprimeable number, because it can be changed into a prime (23878139) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1215 + ... + 7016.
It is an arithmetic number, because the mean of its divisors is an integer number (3984288).
Almost surely, 223878131 is an apocalyptic number.
23878131 is a deficient number, since it is larger than the sum of its proper divisors (7996173).
23878131 is an equidigital number, since it uses as much as digits as its factorization.
23878131 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 9201.
The product of its digits is 8064, while the sum is 33.
The square root of 23878131 is about 4886.5254527118. The cubic root of 23878131 is about 287.9608477834.
The spelling of 23878131 in words is "twenty-three million, eight hundred seventy-eight thousand, one hundred thirty-one".
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