Search a number
-
+
26568290 = 257259919
BaseRepresentation
bin110010101011…
…0011001100010
31211222210211202
41211112121202
523300141130
62345241202
7441553400
oct145263142
954883752
1026568290
1113aa7171
128a93202
135672ca8
143758470
1524ec145
hex1956662

26568290 has 48 divisors (see below), whose sum is σ = 56635200. Its totient is φ = 8944992.

The previous prime is 26568233. The next prime is 26568293. The reversal of 26568290 is 9286562.

It is not an unprimeable number, because it can be changed into a prime (26568293) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 28451 + ... + 29369.

It is an arithmetic number, because the mean of its divisors is an integer number (1179900).

Almost surely, 226568290 is an apocalyptic number.

26568290 is an abundant number, since it is smaller than the sum of its proper divisors (30066910).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

26568290 is a wasteful number, since it uses less digits than its factorization.

26568290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 999 (or 992 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 38.

The square root of 26568290 is about 5154.4437139230. The cubic root of 26568290 is about 298.3924756780.

The spelling of 26568290 in words is "twenty-six million, five hundred sixty-eight thousand, two hundred ninety".

Divisors: 1 2 5 7 10 14 35 49 59 70 98 118 245 295 413 490 590 826 919 1838 2065 2891 4130 4595 5782 6433 9190 12866 14455 28910 32165 45031 54221 64330 90062 108442 225155 271105 379547 450310 542210 759094 1897735 2656829 3795470 5313658 13284145 26568290