Base | Representation |
---|---|
bin | 101000100010111… |
… | …000000101001111 |
3 | 1202101222022211220 |
4 | 220202320011033 |
5 | 2343114344442 |
6 | 151255414423 |
7 | 22566604323 |
oct | 5042700517 |
9 | 1671868756 |
10 | 680231247 |
11 | 319a77893 |
12 | 16b984413 |
13 | aac0a2c7 |
14 | 664ad983 |
15 | 3eab9eec |
hex | 288b814f |
680231247 has 16 divisors (see below), whose sum is σ = 914710272. Its totient is φ = 449634240.
The previous prime is 680231243. The next prime is 680231249. The reversal of 680231247 is 742132086.
It is not a de Polignac number, because 680231247 - 22 = 680231243 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (680231243) 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 15 ways as a sum of consecutive naturals, for example, 227472 + ... + 230442.
It is an arithmetic number, because the mean of its divisors is an integer number (57169392).
Almost surely, 2680231247 is an apocalyptic number.
680231247 is a deficient number, since it is larger than the sum of its proper divisors (234479025).
680231247 is a wasteful number, since it uses less digits than its factorization.
680231247 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 3598.
The product of its (nonzero) digits is 16128, while the sum is 33.
The square root of 680231247 is about 26081.2432027310. The cubic root of 680231247 is about 879.4656048667.
The spelling of 680231247 in words is "six hundred eighty million, two hundred thirty-one thousand, two hundred forty-seven".
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