Base | Representation |
---|---|
bin | 101011111000… |
… | …1101011100100 |
3 | 1121022000210222 |
4 | 1113301223210 |
5 | 21342310040 |
6 | 2141103512 |
7 | 366403415 |
oct | 127615344 |
9 | 47260728 |
10 | 23010020 |
11 | 11a96850 |
12 | 7857b98 |
13 | 49c84c7 |
14 | 30ad80c |
15 | 2047bb5 |
hex | 15f1ae4 |
23010020 has 48 divisors (see below), whose sum is σ = 54020736. Its totient is φ = 8160000.
The previous prime is 23010017. The next prime is 23010037. The reversal of 23010020 is 2001032.
It is a super-2 number, since 2×230100202 = 1058922040800800, which contains 22 as substring.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7745 + ... + 10295.
It is an arithmetic number, because the mean of its divisors is an integer number (1125432).
Almost surely, 223010020 is an apocalyptic number.
23010020 is a gapful number since it is divisible by the number (20) 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 23010020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27010368).
23010020 is an abundant number, since it is smaller than the sum of its proper divisors (31010716).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
23010020 is a wasteful number, since it uses less digits than its factorization.
23010020 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2612 (or 2610 counting only the distinct ones).
The product of its (nonzero) digits is 12, while the sum is 8.
The square root of 23010020 is about 4796.8760667751. The cubic root of 23010020 is about 284.4279898838.
Adding to 23010020 its reverse (2001032), we get a palindrome (25011052).
The spelling of 23010020 in words is "twenty-three million, ten thousand, twenty".
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