Base | Representation |
---|---|
bin | 111101000000… |
… | …0011000100101 |
3 | 2020011220121210 |
4 | 1322000120211 |
5 | 31141430031 |
6 | 3101302033 |
7 | 535565211 |
oct | 172003045 |
9 | 66156553 |
10 | 31983141 |
11 | 17065453 |
12 | a864919 |
13 | 681a848 |
14 | 4367941 |
15 | 2c1b746 |
hex | 1e80625 |
31983141 has 8 divisors (see below), whose sum is σ = 42868224. Its totient is φ = 21210080.
The previous prime is 31983121. The next prime is 31983163. The reversal of 31983141 is 14138913.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 31983141 - 25 = 31983109 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 31983099 and 31983108.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (31983121) 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, 27336 + ... + 28481.
It is an arithmetic number, because the mean of its divisors is an integer number (5358528).
Almost surely, 231983141 is an apocalyptic number.
It is an amenable number.
31983141 is a deficient number, since it is larger than the sum of its proper divisors (10885083).
31983141 is a wasteful number, since it uses less digits than its factorization.
31983141 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 56011.
The product of its digits is 2592, while the sum is 30.
The square root of 31983141 is about 5655.3639140200. The cubic root of 31983141 is about 317.4244464447.
The spelling of 31983141 in words is "thirty-one million, nine hundred eighty-three thousand, one hundred forty-one".
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