Base | Representation |
---|---|
bin | 11111111101010… |
… | …11111000011100 |
3 | 200200110102120220 |
4 | 33332223320130 |
5 | 1022112402113 |
6 | 42334041340 |
7 | 6433510101 |
oct | 1776537034 |
9 | 620412526 |
10 | 268090908 |
11 | 12836a738 |
12 | 75949250 |
13 | 43707b97 |
14 | 27868aa8 |
15 | 18809523 |
hex | ffabe1c |
268090908 has 12 divisors (see below), whose sum is σ = 625545480. Its totient is φ = 89363632.
The previous prime is 268090897. The next prime is 268090909. The reversal of 268090908 is 809090862.
It is a tau number, because it is divible by the number of its divisors (12).
It is a self number, because there is not a number n which added to its sum of digits gives 268090908.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (268090909) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11170443 + ... + 11170466.
It is an arithmetic number, because the mean of its divisors is an integer number (52128790).
Almost surely, 2268090908 is an apocalyptic number.
It is an amenable number.
268090908 is an abundant number, since it is smaller than the sum of its proper divisors (357454572).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
268090908 is a wasteful number, since it uses less digits than its factorization.
268090908 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 22340916 (or 22340914 counting only the distinct ones).
The product of its (nonzero) digits is 62208, while the sum is 42.
The square root of 268090908 is about 16373.4818532895. The cubic root of 268090908 is about 644.8034639469.
The spelling of 268090908 in words is "two hundred sixty-eight million, ninety thousand, nine hundred eight".
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