Base | Representation |
---|---|
bin | 1000000000010101… |
… | …0000001100110000 |
3 | 12112202110102202002 |
4 | 2000011100030300 |
5 | 13400102020340 |
6 | 553121313132 |
7 | 104152005026 |
oct | 20005201460 |
9 | 5482412662 |
10 | 2148860720 |
11 | a02a80956 |
12 | 4bb7957a8 |
13 | 283267826 |
14 | 165568716 |
15 | c89b9715 |
hex | 80150330 |
2148860720 has 40 divisors (see below), whose sum is σ = 5012223840. Its totient is φ = 856770560.
The previous prime is 2148860713. The next prime is 2148860743. The reversal of 2148860720 is 270688412.
It is a tau number, because it is divible by the number of its divisors (40).
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18305 + ... + 68064.
It is an arithmetic number, because the mean of its divisors is an integer number (125305596).
Almost surely, 22148860720 is an apocalyptic number.
2148860720 is a gapful number since it is divisible by the number (20) formed by its first and last digit.
It is an amenable number.
2148860720 is an abundant number, since it is smaller than the sum of its proper divisors (2863363120).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
2148860720 is a wasteful number, since it uses less digits than its factorization.
2148860720 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 86693 (or 86687 counting only the distinct ones).
The product of its (nonzero) digits is 43008, while the sum is 38.
The square root of 2148860720 is about 46355.8056773906. The cubic root of 2148860720 is about 1290.4348673084.
The spelling of 2148860720 in words is "two billion, one hundred forty-eight million, eight hundred sixty thousand, seven hundred twenty".
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