Base | Representation |
---|---|
bin | 101000100010010… |
… | …000101111101011 |
3 | 1202101200010211100 |
4 | 220202100233223 |
5 | 2343044220443 |
6 | 151252132443 |
7 | 22565333505 |
oct | 5042205753 |
9 | 1671603740 |
10 | 680070123 |
11 | 319977827 |
12 | 16b907123 |
13 | aab81b75 |
14 | 6646ad75 |
15 | 3ea873d3 |
hex | 28890beb |
680070123 has 6 divisors (see below), whose sum is σ = 982323524. Its totient is φ = 453380076.
The previous prime is 680070113. The next prime is 680070133. The reversal of 680070123 is 321070086.
It is an interprime number because it is at equal distance from previous prime (680070113) and next prime (680070133).
It is not a de Polignac number, because 680070123 - 24 = 680070107 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (680070103) by changing a digit.
It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 37781665 + ... + 37781682.
Almost surely, 2680070123 is an apocalyptic number.
680070123 is a deficient number, since it is larger than the sum of its proper divisors (302253401).
680070123 is a wasteful number, since it uses less digits than its factorization.
680070123 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 75563353 (or 75563350 counting only the distinct ones).
The product of its (nonzero) digits is 2016, while the sum is 27.
The square root of 680070123 is about 26078.1541332971. The cubic root of 680070123 is about 879.3961607345.
The spelling of 680070123 in words is "six hundred eighty million, seventy thousand, one hundred twenty-three".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.071 sec. • engine limits •