Base | Representation |
---|---|
bin | 10011110001100101… |
… | …111011111011000010 |
3 | 2000210202212102000100 |
4 | 103301211323323002 |
5 | 321441134414020 |
6 | 13430535303230 |
7 | 1351114365501 |
oct | 236145737302 |
9 | 60722772010 |
10 | 21233123010 |
11 | 90065a9650 |
12 | 4146b1ab16 |
13 | 2004cc8718 |
14 | 1055d98838 |
15 | 84414aa90 |
hex | 4f197bec2 |
21233123010 has 96 divisors (see below), whose sum is σ = 63394643520. Its totient is φ = 4876502400.
The previous prime is 21233122987. The next prime is 21233123047. The reversal of 21233123010 is 1032133212.
It is a Harshad number since it is a multiple of its sum of digits (18).
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, 545601 + ... + 583220.
It is an arithmetic number, because the mean of its divisors is an integer number (660360870).
Almost surely, 221233123010 is an apocalyptic number.
21233123010 is an abundant number, since it is smaller than the sum of its proper divisors (42161520510).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
21233123010 is a wasteful number, since it uses less digits than its factorization.
21233123010 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1128864 (or 1128861 counting only the distinct ones).
The product of its (nonzero) digits is 216, while the sum is 18.
Adding to 21233123010 its reverse (1032133212), we get a palindrome (22265256222).
The spelling of 21233123010 in words is "twenty-one billion, two hundred thirty-three million, one hundred twenty-three thousand, ten".
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