Base | Representation |
---|---|
bin | 10011111010100011… |
… | …000001001100101010 |
3 | 2001012020112212222212 |
4 | 103322203001030222 |
5 | 322243114300010 |
6 | 13453503245122 |
7 | 1354620334256 |
oct | 237243011452 |
9 | 61166485885 |
10 | 21383353130 |
11 | 9083388777 |
12 | 41892a97a2 |
13 | 202a178299 |
14 | 106bd03266 |
15 | 852423505 |
hex | 4fa8c132a |
21383353130 has 16 divisors (see below), whose sum is σ = 38514752640. Its totient is φ = 8547848592.
The previous prime is 21383353127. The next prime is 21383353139. The reversal of 21383353130 is 3135338312.
It is not an unprimeable number, because it can be changed into a prime (21383353139) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 670214 + ... + 701393.
It is an arithmetic number, because the mean of its divisors is an integer number (2407172040).
Almost surely, 221383353130 is an apocalyptic number.
21383353130 is a deficient number, since it is larger than the sum of its proper divisors (17131399510).
21383353130 is a wasteful number, since it uses less digits than its factorization.
21383353130 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1373173.
The product of its (nonzero) digits is 19440, while the sum is 32.
The spelling of 21383353130 in words is "twenty-one billion, three hundred eighty-three million, three hundred fifty-three thousand, one hundred thirty".
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