Base | Representation |
---|---|
bin | 10010101011010110… |
… | …110011111010010000 |
3 | 1220202122120000010101 |
4 | 102223112303322100 |
5 | 312033004043122 |
6 | 13114002542144 |
7 | 1306655405245 |
oct | 225326637220 |
9 | 56678500111 |
10 | 20054752912 |
11 | 8561426767 |
12 | 3a78367954 |
13 | 1b77b384cc |
14 | d836995cc |
15 | 7c5984027 |
hex | 4ab5b3e90 |
20054752912 has 20 divisors (see below), whose sum is σ = 38858455980. Its totient is φ = 10026764288.
The previous prime is 20054752897. The next prime is 20054752943. The reversal of 20054752912 is 21925745002.
It can be written as a sum of positive squares in 2 ways, for example, as 9793873296 + 10260879616 = 98964^2 + 101296^2 .
It is a super-2 number, since 2×200547529122 (a number of 21 digits) contains 22 as substring.
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, 353664 + ... + 406432.
It is an arithmetic number, because the mean of its divisors is an integer number (1942922799).
Almost surely, 220054752912 is an apocalyptic number.
It is an amenable number.
20054752912 is a deficient number, since it is larger than the sum of its proper divisors (18803703068).
20054752912 is a wasteful number, since it uses less digits than its factorization.
20054752912 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 76530 (or 76524 counting only the distinct ones).
The product of its (nonzero) digits is 50400, while the sum is 37.
The spelling of 20054752912 in words is "twenty billion, fifty-four million, seven hundred fifty-two thousand, nine hundred twelve".
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