Base | Representation |
---|---|
bin | 111100000011… |
… | …0100001111111 |
3 | 2012020112222020 |
4 | 1320012201333 |
5 | 31024442111 |
6 | 3042451223 |
7 | 531416115 |
oct | 170064177 |
9 | 65215866 |
10 | 31484031 |
11 | 16854467 |
12 | a663b13 |
13 | 66a4607 |
14 | 4277ab5 |
15 | 2b6d906 |
hex | 1e0687f |
31484031 has 8 divisors (see below), whose sum is σ = 42872064. Its totient is φ = 20542680.
The previous prime is 31483981. The next prime is 31484059. The reversal of 31484031 is 13048413.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 31484031 - 214 = 31467647 is a prime.
It is a super-2 number, since 2×314840312 = 1982488416017922, which contains 22 as substring.
It is a junction number, because it is equal to n+sod(n) for n = 31483992 and 31484010.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (31484071) 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, 111505 + ... + 111786.
It is an arithmetic number, because the mean of its divisors is an integer number (5359008).
Almost surely, 231484031 is an apocalyptic number.
31484031 is a deficient number, since it is larger than the sum of its proper divisors (11388033).
31484031 is a wasteful number, since it uses less digits than its factorization.
31484031 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 223341.
The product of its (nonzero) digits is 1152, while the sum is 24.
The square root of 31484031 is about 5611.0632682229. The cubic root of 31484031 is about 315.7646026363.
The spelling of 31484031 in words is "thirty-one million, four hundred eighty-four thousand, thirty-one".
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