Search a number
-
+
26188228 = 221117157223
BaseRepresentation
bin110001111100…
…1100111000100
31211021111111101
41203321213010
523201010403
62333145444
7435411343
oct143714704
954244441
1026188228
1113867670
12892b284
13556bcc1
143699b5a
15247471d
hex18f99c4

26188228 has 48 divisors (see below), whose sum is σ = 53512704. Its totient is φ = 11082240.

The previous prime is 26188219. The next prime is 26188229. The reversal of 26188228 is 82288162.

It is not an unprimeable number, because it can be changed into a prime (26188229) 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, 117325 + ... + 117547.

It is an arithmetic number, because the mean of its divisors is an integer number (1114848).

Almost surely, 226188228 is an apocalyptic number.

It is an amenable number.

26188228 is an abundant number, since it is smaller than the sum of its proper divisors (27324476).

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

26188228 is a wasteful number, since it uses less digits than its factorization.

26188228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 412 (or 410 counting only the distinct ones).

The product of its digits is 24576, while the sum is 37.

The square root of 26188228 is about 5117.4435023750. The cubic root of 26188228 is about 296.9627920300.

The spelling of 26188228 in words is "twenty-six million, one hundred eighty-eight thousand, two hundred twenty-eight".

Divisors: 1 2 4 11 17 22 34 44 68 157 187 223 314 374 446 628 748 892 1727 2453 2669 3454 3791 4906 5338 6908 7582 9812 10676 15164 29359 35011 41701 58718 70022 83402 117436 140044 166804 385121 595187 770242 1190374 1540484 2380748 6547057 13094114 26188228