Base | Representation |
---|---|
bin | 11011010000001000101100 |
3 | 111102221200212 |
4 | 123100020230 |
5 | 3312101410 |
6 | 413041552 |
7 | 114502634 |
oct | 33201054 |
9 | 14387625 |
10 | 7143980 |
11 | 403a418 |
12 | 24862b8 |
13 | 163190c |
14 | d3d6c4 |
15 | 961b05 |
hex | 6d022c |
7143980 has 12 divisors (see below), whose sum is σ = 15002400. Its totient is φ = 2857584.
The previous prime is 7143979. The next prime is 7143989. The reversal of 7143980 is 893417.
It is not an unprimeable number, because it can be changed into a prime (7143989) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 178580 + ... + 178619.
It is an arithmetic number, because the mean of its divisors is an integer number (1250200).
Almost surely, 27143980 is an apocalyptic number.
It is an amenable number.
7143980 is an abundant number, since it is smaller than the sum of its proper divisors (7858420).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
7143980 is a wasteful number, since it uses less digits than its factorization.
7143980 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 357208 (or 357206 counting only the distinct ones).
The product of its (nonzero) digits is 6048, while the sum is 32.
The square root of 7143980 is about 2672.8224782054. The cubic root of 7143980 is about 192.5957695162.
The spelling of 7143980 in words is "seven million, one hundred forty-three thousand, nine hundred eighty".
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