Base | Representation |
---|---|
bin | 10000000000101… |
… | …111110111010011 |
3 | 200201110220011002 |
4 | 100000233313103 |
5 | 1022232202012 |
6 | 42353412215 |
7 | 6441221144 |
oct | 2000576723 |
9 | 621426132 |
10 | 268631507 |
11 | 1286a9911 |
12 | 75b6a06b |
13 | 43866c71 |
14 | 27969acb |
15 | 188b47c2 |
hex | 1002fdd3 |
268631507 has 8 divisors (see below), whose sum is σ = 281099376. Its totient is φ = 256437792.
The previous prime is 268631491. The next prime is 268631527. The reversal of 268631507 is 705136862.
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 268631507 - 24 = 268631491 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (268631527) 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, 66533 + ... + 70454.
It is an arithmetic number, because the mean of its divisors is an integer number (35137422).
Almost surely, 2268631507 is an apocalyptic number.
268631507 is a deficient number, since it is larger than the sum of its proper divisors (12467869).
268631507 is a wasteful number, since it uses less digits than its factorization.
268631507 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 137077.
The product of its (nonzero) digits is 60480, while the sum is 38.
The square root of 268631507 is about 16389.9819096911. The cubic root of 268631507 is about 645.2365832835.
The spelling of 268631507 in words is "two hundred sixty-eight million, six hundred thirty-one thousand, five hundred seven".
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