Base | Representation |
---|---|
bin | 10010111110001101… |
… | …011001111001101100 |
3 | 1221120200201202220110 |
4 | 102332031121321230 |
5 | 313204442213223 |
6 | 13205222220020 |
7 | 1320546050352 |
oct | 227615317154 |
9 | 57520652813 |
10 | 20371054188 |
11 | 8703a24581 |
12 | 3b46284610 |
13 | 1bc8523024 |
14 | db36b37d2 |
15 | 7e3612d93 |
hex | 4be359e6c |
20371054188 has 96 divisors (see below), whose sum is σ = 49069359360. Its totient is φ = 6575120640.
The previous prime is 20371054183. The next prime is 20371054213. The reversal of 20371054188 is 88145017302.
It is not an unprimeable number, because it can be changed into a prime (20371054183) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14019270 + ... + 14020722.
It is an arithmetic number, because the mean of its divisors is an integer number (511139160).
Almost surely, 220371054188 is an apocalyptic number.
It is an amenable number.
20371054188 is an abundant number, since it is smaller than the sum of its proper divisors (28698305172).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
20371054188 is a wasteful number, since it uses less digits than its factorization.
20371054188 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1807 (or 1805 counting only the distinct ones).
The product of its (nonzero) digits is 53760, while the sum is 39.
The spelling of 20371054188 in words is "twenty billion, three hundred seventy-one million, fifty-four thousand, one hundred eighty-eight".
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