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135655156 = 227132971181
BaseRepresentation
bin10000001010111…
…10111011110100
3100110020222220001
420011132323310
5234211431111
621243321044
73235023040
oct1005367364
9313228801
10135655156
116a6347aa
1239520184
1322148830
1414033020
15bd991c1
hex815eef4

135655156 has 96 divisors (see below), whose sum is σ = 308206080. Its totient is φ = 50803200.

The previous prime is 135655151. The next prime is 135655171. The reversal of 135655156 is 651556531.

135655156 = 1342 + 1352 + ... + 7422.

135655156 is a nontrivial binomial coefficient, being equal to C(16472, 2).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135655151) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 749386 + ... + 749566.

It is an arithmetic number, because the mean of its divisors is an integer number (3210480).

Almost surely, 2135655156 is an apocalyptic number.

135655156 is the 16471-st triangular number and also the 8236-th hexagonal number.

135655156 is the 5491-st centered nonagonal number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 135655156, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (154103040).

135655156 is an abundant number, since it is smaller than the sum of its proper divisors (172550924).

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

135655156 is a wasteful number, since it uses less digits than its factorization.

135655156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 305 (or 303 counting only the distinct ones).

The product of its digits is 67500, while the sum is 37.

The square root of 135655156 is about 11647.1093409481. The cubic root of 135655156 is about 513.8212977773.

It can be divided in two parts, 13565 and 5156, that added together give a triangular number (18721 = T193).

The spelling of 135655156 in words is "one hundred thirty-five million, six hundred fifty-five thousand, one hundred fifty-six".

Divisors: 1 2 4 7 13 14 26 28 29 52 58 71 91 116 142 181 182 203 284 362 364 377 406 497 724 754 812 923 994 1267 1508 1846 1988 2059 2353 2534 2639 3692 4118 4706 5068 5249 5278 6461 8236 9412 10498 10556 12851 12922 14413 16471 20996 25702 25844 26767 28826 32942 36743 51404 53534 57652 65884 68237 73486 89957 107068 136474 146972 167063 179914 187369 272948 334126 359828 372679 374738 477659 668252 745358 749476 955318 1169441 1490716 1910636 2338882 2608753 4677764 4844827 5217506 9689654 10435012 19379308 33913789 67827578 135655156