Base | Representation |
---|---|
bin | 111011111011… |
… | …0001011001111 |
3 | 2012010011002001 |
4 | 1313312023033 |
5 | 31020321124 |
6 | 3041213131 |
7 | 531016603 |
oct | 167661317 |
9 | 65104061 |
10 | 31417039 |
11 | 168090a5 |
12 | a6311a7 |
13 | 667cc84 |
14 | 425b503 |
15 | 2b58b44 |
hex | 1df62cf |
31417039 has 8 divisors (see below), whose sum is σ = 31857840. Its totient is φ = 30978816.
The previous prime is 31417031. The next prime is 31417069. The reversal of 31417039 is 93071413.
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 31417039 - 23 = 31417031 is a prime.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 31416998 and 31417016.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (31417031) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40257 + ... + 41029.
It is an arithmetic number, because the mean of its divisors is an integer number (3982230).
Almost surely, 231417039 is an apocalyptic number.
31417039 is a deficient number, since it is larger than the sum of its proper divisors (440801).
31417039 is an equidigital number, since it uses as much as digits as its factorization.
31417039 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1289.
The product of its (nonzero) digits is 2268, while the sum is 28.
The square root of 31417039 is about 5605.0904542211. The cubic root of 31417039 is about 315.5404813593.
The spelling of 31417039 in words is "thirty-one million, four hundred seventeen thousand, thirty-nine".
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