Base | Representation |
---|---|
bin | 101000100000000… |
… | …011000111101111 |
3 | 1202100120200002110 |
4 | 220200003013233 |
5 | 2342422140111 |
6 | 151231455103 |
7 | 22560366333 |
oct | 5040030757 |
9 | 1670520073 |
10 | 679490031 |
11 | 319610a10 |
12 | 16b687493 |
13 | aaa0ab0c |
14 | 663597c3 |
15 | 3e9c05a6 |
hex | 288031ef |
679490031 has 8 divisors (see below), whose sum is σ = 988349184. Its totient is φ = 411812120.
The previous prime is 679489973. The next prime is 679490069. The reversal of 679490031 is 130094976.
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 679490031 - 210 = 679489007 is a prime.
It is a super-2 number, since 2×6794900312 = 923413404456761922, which contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (679490431) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10295271 + ... + 10295336.
It is an arithmetic number, because the mean of its divisors is an integer number (123543648).
Almost surely, 2679490031 is an apocalyptic number.
679490031 is a deficient number, since it is larger than the sum of its proper divisors (308859153).
679490031 is a wasteful number, since it uses less digits than its factorization.
679490031 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 20590621.
The product of its (nonzero) digits is 40824, while the sum is 39.
The square root of 679490031 is about 26067.0295776101. The cubic root of 679490031 is about 879.1460513343.
The spelling of 679490031 in words is "six hundred seventy-nine million, four hundred ninety thousand, thirty-one".
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