Base | Representation |
---|---|
bin | 10010101110011100… |
… | …100111001010010000 |
3 | 1220220021010101002111 |
4 | 102232130213022100 |
5 | 312134242331300 |
6 | 13123054155104 |
7 | 1311155216143 |
oct | 225634471220 |
9 | 56807111074 |
10 | 20106605200 |
11 | 85887220a0 |
12 | 3a917b2a94 |
13 | 1b857c1a36 |
14 | d8a51605a |
15 | 7ca2c79ba |
hex | 4ae727290 |
20106605200 has 60 divisors (see below), whose sum is σ = 52697595888. Its totient is φ = 7311491200.
The previous prime is 20106605171. The next prime is 20106605213. The reversal of 20106605200 is 250660102.
It is a Harshad number since it is a multiple of its sum of digits (22).
It is an unprimeable number.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2280442 + ... + 2289241.
Almost surely, 220106605200 is an apocalyptic number.
20106605200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.
It is an amenable number.
20106605200 is an abundant number, since it is smaller than the sum of its proper divisors (32590990688).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
20106605200 is a wasteful number, since it uses less digits than its factorization.
20106605200 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 4569712 (or 4569701 counting only the distinct ones).
The product of its (nonzero) digits is 720, while the sum is 22.
The spelling of 20106605200 in words is "twenty billion, one hundred six million, six hundred five thousand, two hundred".
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