Base | Representation |
---|---|
bin | 10010111011110010… |
… | …010111110111001000 |
3 | 1221110212021000101020 |
4 | 102323302113313020 |
5 | 313114041213022 |
6 | 13201211152440 |
7 | 1316543443413 |
oct | 227362276710 |
9 | 57425230336 |
10 | 20330413512 |
11 | 8692a96642 |
12 | 3b34745720 |
13 | 1bbcc939a6 |
14 | dac134b7a |
15 | 7dec8635c |
hex | 4bbc97dc8 |
20330413512 has 16 divisors (see below), whose sum is σ = 50826033840. Its totient is φ = 6776804496.
The previous prime is 20330413507. The next prime is 20330413531. The reversal of 20330413512 is 21531403302.
It is a Harshad number since it is a multiple of its sum of digits (24), and also a Moran number because the ratio is a prime number: 847100563 = 20330413512 / (2 + 0 + 3 + 3 + 0 + 4 + 1 + 3 + 5 + 1 + 2).
It is an unprimeable number.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 423550258 + ... + 423550305.
It is an arithmetic number, because the mean of its divisors is an integer number (3176627115).
Almost surely, 220330413512 is an apocalyptic number.
It is an amenable number.
20330413512 is an abundant number, since it is smaller than the sum of its proper divisors (30495620328).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
20330413512 is a wasteful number, since it uses less digits than its factorization.
20330413512 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 847100572 (or 847100568 counting only the distinct ones).
The product of its (nonzero) digits is 2160, while the sum is 24.
Adding to 20330413512 its reverse (21531403302), we get a palindrome (41861816814).
The spelling of 20330413512 in words is "twenty billion, three hundred thirty million, four hundred thirteen thousand, five hundred twelve".
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