Base | Representation |
---|---|
bin | 10000101111101101… |
… | …100101011010000000 |
3 | 1201102002012022121000 |
4 | 100233231211122000 |
5 | 243310432114112 |
6 | 12132101132000 |
7 | 1204366302513 |
oct | 205755453200 |
9 | 51362168530 |
10 | 17980348032 |
11 | 769748a669 |
12 | 35996ba000 |
13 | 190713c6ba |
14 | c27d92d7a |
15 | 7037c57dc |
hex | 42fb65680 |
17980348032 has 64 divisors (see below), whose sum is σ = 53067009600. Its totient is φ = 5993448192.
The previous prime is 17980348031. The next prime is 17980348081. The reversal of 17980348032 is 23084308971.
It is a tau number, because it is divible by the number of its divisors (64).
It is not an unprimeable number, because it can be changed into a prime (17980348031) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2597868 + ... + 2604779.
It is an arithmetic number, because the mean of its divisors is an integer number (829172025).
Almost surely, 217980348032 is an apocalyptic number.
17980348032 is a gapful number since it is divisible by the number (12) formed by its first and last digit.
It is an amenable number.
17980348032 is an abundant number, since it is smaller than the sum of its proper divisors (35086661568).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
17980348032 is an equidigital number, since it uses as much as digits as its factorization.
17980348032 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 5202670 (or 5202652 counting only the distinct ones).
The product of its (nonzero) digits is 290304, while the sum is 45.
The spelling of 17980348032 in words is "seventeen billion, nine hundred eighty million, three hundred forty-eight thousand, thirty-two".
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