Base | Representation |
---|---|
bin | 101000100011111… |
… | …100010000110000 |
3 | 1202102111111221001 |
4 | 220203330100300 |
5 | 2343202314022 |
6 | 151305411344 |
7 | 22602146443 |
oct | 5043742060 |
9 | 1672444831 |
10 | 680510512 |
11 | 31a148690 |
12 | 16ba99b54 |
13 | aaca7456 |
14 | 6654365a |
15 | 3eb22b27 |
hex | 288fc430 |
680510512 has 80 divisors (see below), whose sum is σ = 1525330944. Its totient is φ = 291168000.
The previous prime is 680510507. The next prime is 680510533. The reversal of 680510512 is 215015086.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 200187 + ... + 203557.
Almost surely, 2680510512 is an apocalyptic number.
680510512 is a gapful number since it is divisible by the number (62) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 680510512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (762665472).
680510512 is an abundant number, since it is smaller than the sum of its proper divisors (844820432).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
680510512 is a wasteful number, since it uses less digits than its factorization.
680510512 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 3458 (or 3452 counting only the distinct ones).
The product of its (nonzero) digits is 2400, while the sum is 28.
The square root of 680510512 is about 26086.5964050506. The cubic root of 680510512 is about 879.5859415710.
Adding to 680510512 its reverse (215015086), we get a palindrome (895525598).
The spelling of 680510512 in words is "six hundred eighty million, five hundred ten thousand, five hundred twelve".
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