Base | Representation |
---|---|
bin | 101100101111… |
… | …1101000011101 |
3 | 1122010220121000 |
4 | 1121133220131 |
5 | 22001213011 |
6 | 2154500513 |
7 | 403260420 |
oct | 131375035 |
9 | 48126530 |
10 | 23460381 |
11 | 1227414a |
12 | 7a34739 |
13 | 4b254a9 |
14 | 31899b7 |
15 | 20d6356 |
hex | 165fa1d |
23460381 has 32 divisors (see below), whose sum is σ = 40147200. Its totient is φ = 13262400.
The previous prime is 23460343. The next prime is 23460401. The reversal of 23460381 is 18306432.
It is a happy number.
It is not a de Polignac number, because 23460381 - 217 = 23329309 is a prime.
It is a super-2 number, since 2×234603812 = 1100778953330322, which contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (27).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (23460301) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 18475 + ... + 19703.
It is an arithmetic number, because the mean of its divisors is an integer number (1254600).
Almost surely, 223460381 is an apocalyptic number.
23460381 is a gapful number since it is divisible by the number (21) formed by its first and last digit.
It is an amenable number.
23460381 is a deficient number, since it is larger than the sum of its proper divisors (16686819).
23460381 is a wasteful number, since it uses less digits than its factorization.
23460381 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1346 (or 1340 counting only the distinct ones).
The product of its (nonzero) digits is 3456, while the sum is 27.
The square root of 23460381 is about 4843.5917458019. The cubic root of 23460381 is about 286.2716581949.
The spelling of 23460381 in words is "twenty-three million, four hundred sixty thousand, three hundred eighty-one".
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