Base | Representation |
---|---|
bin | 10101011011101100… |
… | …000000100111110100 |
3 | 2012101211012121102210 |
4 | 111123230000213310 |
5 | 334112323200040 |
6 | 14323322333420 |
7 | 1443200060031 |
oct | 253354004764 |
9 | 65354177383 |
10 | 23013100020 |
11 | 983a327729 |
12 | 456305a270 |
13 | 22299c7a61 |
14 | 118453c388 |
15 | 8ea54b480 |
hex | 55bb009f4 |
23013100020 has 48 divisors (see below), whose sum is σ = 64451237760. Its totient is φ = 6135440256.
The previous prime is 23013099947. The next prime is 23013100051. The reversal of 23013100020 is 2000131032.
It is a happy number.
It is a Harshad number since it is a multiple of its sum of digits (12).
It is a junction number, because it is equal to n+sod(n) for n = 23013099969 and 23013100005.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 239754 + ... + 321726.
It is an arithmetic number, because the mean of its divisors is an integer number (1342734120).
Almost surely, 223013100020 is an apocalyptic number.
23013100020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.
It is an amenable number.
23013100020 is an abundant number, since it is smaller than the sum of its proper divisors (41438137740).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
23013100020 is a wasteful number, since it uses less digits than its factorization.
23013100020 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 86664 (or 86662 counting only the distinct ones).
The product of its (nonzero) digits is 36, while the sum is 12.
Adding to 23013100020 its reverse (2000131032), we get a palindrome (25013231052).
The spelling of 23013100020 in words is "twenty-three billion, thirteen million, one hundred thousand, twenty".
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