Base | Representation |
---|---|
bin | 101100000001… |
… | …1000100111010 |
3 | 1121102122120000 |
4 | 1120003010322 |
5 | 21402100044 |
6 | 2142413430 |
7 | 400121226 |
oct | 130030472 |
9 | 47378500 |
10 | 23081274 |
11 | 12035337 |
12 | 7891276 |
13 | 4a21a78 |
14 | 30cb786 |
15 | 205dd69 |
hex | 160313a |
23081274 has 80 divisors (see below), whose sum is σ = 56845800. Its totient is φ = 6991488.
The previous prime is 23081273. The next prime is 23081281. The reversal of 23081274 is 47218032.
It can be written as a sum of positive squares in 4 ways, for example, as 20657025 + 2424249 = 4545^2 + 1557^2 .
It is a Harshad number since it is a multiple of its sum of digits (27).
It is not an unprimeable number, because it can be changed into a prime (23081273) by changing a digit.
It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 795892 + ... + 795920.
Almost surely, 223081274 is an apocalyptic number.
It is a practical number, because each smaller number is the sum of distinct divisors of 23081274, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28422900).
23081274 is an abundant number, since it is smaller than the sum of its proper divisors (33764526).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
23081274 is an equidigital number, since it uses as much as digits as its factorization.
23081274 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 94 (or 51 counting only the distinct ones).
The product of its (nonzero) digits is 2688, while the sum is 27.
The square root of 23081274 is about 4804.2974512409. The cubic root of 23081274 is about 284.7212787546.
The spelling of 23081274 in words is "twenty-three million, eighty-one thousand, two hundred seventy-four".
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