Base | Representation |
---|---|
bin | 10101011011100111… |
… | …111011101101000100 |
3 | 2012101202012022102120 |
4 | 111123213323231010 |
5 | 334112040000200 |
6 | 14323243405540 |
7 | 1443155016156 |
oct | 253347735504 |
9 | 65352168376 |
10 | 23012031300 |
11 | 9839767795 |
12 | 45628238b0 |
13 | 222971248b |
14 | 1184340ad6 |
15 | 8ea3d99a0 |
hex | 55b9fbb44 |
23012031300 has 144 divisors (see below), whose sum is σ = 73563541632. Its totient is φ = 5524428800.
The previous prime is 23012031281. The next prime is 23012031313. The reversal of 23012031300 is 313021032.
It is a Harshad number since it is a multiple of its sum of digits (15).
It is a self number, because there is not a number n which added to its sum of digits gives 23012031300.
It is an unprimeable number.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 19210 + ... + 215390.
It is an arithmetic number, because the mean of its divisors is an integer number (510857928).
Almost surely, 223012031300 is an apocalyptic number.
23012031300 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 23012031300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36781770816).
23012031300 is an abundant number, since it is smaller than the sum of its proper divisors (50551510332).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
23012031300 is a wasteful number, since it uses less digits than its factorization.
23012031300 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 196238 (or 196231 counting only the distinct ones).
The product of its (nonzero) digits is 108, while the sum is 15.
Adding to 23012031300 its reverse (313021032), we get a palindrome (23325052332).
The spelling of 23012031300 in words is "twenty-three billion, twelve million, thirty-one thousand, three hundred".
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