Base | Representation |
---|---|
bin | 101011111011… |
… | …0101001111000 |
3 | 1121100001202111 |
4 | 1113312221320 |
5 | 21343433032 |
6 | 2141342104 |
7 | 366520000 |
oct | 127665170 |
9 | 47301674 |
10 | 23030392 |
11 | 12000090 |
12 | 7867934 |
13 | 4a04868 |
14 | 30b7000 |
15 | 204dc47 |
hex | 15f6a78 |
23030392 has 80 divisors (see below), whose sum is σ = 55459800. Its totient is φ = 8890560.
The previous prime is 23030389. The next prime is 23030407. The reversal of 23030392 is 29303032.
It is a Harshad number since it is a multiple of its sum of digits (22).
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 211234 + ... + 211342.
Almost surely, 223030392 is an apocalyptic number.
23030392 is a gapful number since it is divisible by the number (22) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 23030392, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27729900).
23030392 is an abundant number, since it is smaller than the sum of its proper divisors (32429408).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
23030392 is a wasteful number, since it uses less digits than its factorization.
23030392 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 154 (or 129 counting only the distinct ones).
The product of its (nonzero) digits is 972, while the sum is 22.
The square root of 23030392 is about 4798.9990623046. Note that the first 3 decimals coincide. The cubic root of 23030392 is about 284.5119048888.
The spelling of 23030392 in words is "twenty-three million, thirty thousand, three hundred ninety-two".
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