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135378232 = 23111538389
BaseRepresentation
bin10000001000110…
…11010100111000
3100102201221000121
420010123110320
5234124100412
621233343024
73232460503
oct1004332470
9312657017
10135378232
116a465740
1239407a74
132207c782
1413da013a
15bd42107
hex811b538

135378232 has 16 divisors (see below), whose sum is σ = 276910200. Its totient is φ = 61535520.

The previous prime is 135378223. The next prime is 135378239. The reversal of 135378232 is 232873531.

It is a super-3 number, since 3×1353782323 (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135378239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 769107 + ... + 769282.

Almost surely, 2135378232 is an apocalyptic number.

It is an amenable number.

135378232 is an abundant number, since it is smaller than the sum of its proper divisors (141531968).

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

135378232 is a wasteful number, since it uses less digits than its factorization.

135378232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1538406 (or 1538402 counting only the distinct ones).

The product of its digits is 30240, while the sum is 34.

The square root of 135378232 is about 11635.2151677569. The cubic root of 135378232 is about 513.4714244033.

The spelling of 135378232 in words is "one hundred thirty-five million, three hundred seventy-eight thousand, two hundred thirty-two".

Divisors: 1 2 4 8 11 22 44 88 1538389 3076778 6153556 12307112 16922279 33844558 67689116 135378232