Base | Representation |
---|---|
bin | 10011000100110111001 |
3 | 1011202110011 |
4 | 2120212321 |
5 | 130000311 |
6 | 21221521 |
7 | 5212252 |
oct | 2304671 |
9 | 1152404 |
10 | 625081 |
11 | 3976a6 |
12 | 2618a1 |
13 | 18b692 |
14 | 123b29 |
15 | c5321 |
hex | 989b9 |
625081 has 8 divisors (see below), whose sum is σ = 665280. Its totient is φ = 585648.
The previous prime is 625063. The next prime is 625087. The reversal of 625081 is 180526.
It is a happy number.
625081 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-625081 is a prime.
It is a super-2 number, since 2×6250812 = 781452513122, which contains 22 as substring.
It is a Duffinian number.
It is a nialpdrome in base 15.
It is not an unprimeable number, because it can be changed into a prime (625087) 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, 3075 + ... + 3271.
It is an arithmetic number, because the mean of its divisors is an integer number (83160).
2625081 is an apocalyptic number.
It is an amenable number.
625081 is a deficient number, since it is larger than the sum of its proper divisors (40199).
625081 is a wasteful number, since it uses less digits than its factorization.
625081 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 383.
The product of its (nonzero) digits is 480, while the sum is 22.
The square root of 625081 is about 790.6206422805. The cubic root of 625081 is about 85.5024907223.
The spelling of 625081 in words is "six hundred twenty-five thousand, eighty-one".
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