Base | Representation |
---|---|
bin | 11000101110001… |
… | …01111110011100 |
3 | 112110020000101211 |
4 | 30113011332130 |
5 | 411042133010 |
6 | 32324514204 |
7 | 5065463344 |
oct | 1427057634 |
9 | 473200354 |
10 | 207380380 |
11 | a7073a49 |
12 | 5954b964 |
13 | 33c6c6ac |
14 | 1d783d24 |
15 | 1331608a |
hex | c5c5f9c |
207380380 has 24 divisors (see below), whose sum is σ = 438389280. Its totient is φ = 82401600.
The previous prime is 207380377. The next prime is 207380387. The reversal of 207380380 is 83083702.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (207380387) 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, 31315 + ... + 37354.
It is an arithmetic number, because the mean of its divisors is an integer number (18266220).
Almost surely, 2207380380 is an apocalyptic number.
207380380 is a gapful number since it is divisible by the number (20) formed by its first and last digit.
It is an amenable number.
207380380 is an abundant number, since it is smaller than the sum of its proper divisors (231008900).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
207380380 is a wasteful number, since it uses less digits than its factorization.
207380380 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 68829 (or 68827 counting only the distinct ones).
The product of its (nonzero) digits is 8064, while the sum is 31.
The square root of 207380380 is about 14400.7076215025. The cubic root of 207380380 is about 591.9102881771.
The spelling of 207380380 in words is "two hundred seven million, three hundred eighty thousand, three hundred eighty".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.063 sec. • engine limits •