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135245188 = 221331531583
BaseRepresentation
bin10000000111110…
…10110110000100
3100102111011112001
420003322312010
5234110321223
621230435044
73231364561
oct1003726604
9312434461
10135245188
116a384791
1239362a84
1322034050
1413d67868
15bd179ad
hex80fad84

135245188 has 48 divisors (see below), whose sum is σ = 268240896. Its totient is φ = 59230080.

The previous prime is 135245147. The next prime is 135245189. The reversal of 135245188 is 881542531.

It is a Smith number, since the sum of its digits (37) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (135245189) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 84645 + ... + 86227.

It is an arithmetic number, because the mean of its divisors is an integer number (5588352).

Almost surely, 2135245188 is an apocalyptic number.

It is an amenable number.

135245188 is a deficient number, since it is larger than the sum of its proper divisors (132995708).

135245188 is a wasteful number, since it uses less digits than its factorization.

135245188 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1684 (or 1682 counting only the distinct ones).

The product of its digits is 38400, while the sum is 37.

The square root of 135245188 is about 11629.4964637339. The cubic root of 135245188 is about 513.3031632725.

The spelling of 135245188 in words is "one hundred thirty-five million, two hundred forty-five thousand, one hundred eighty-eight".

Divisors: 1 2 4 13 26 31 52 53 62 106 124 212 403 689 806 1378 1583 1612 1643 2756 3166 3286 6332 6572 20579 21359 41158 42718 49073 82316 83899 85436 98146 167798 196292 335596 637949 1090687 1275898 2181374 2551796 2600869 4362748 5201738 10403476 33811297 67622594 135245188