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135265180 = 225191492389
BaseRepresentation
bin10000000111111…
…11101110011100
3100102112011221111
420003333232130
5234111441210
621231111404
73231510061
oct1003775634
9312464844
10135265180
116a398806
1239372564
132204018b
1413d70c68
15bd1d88a
hex80ffb9c

135265180 has 48 divisors (see below), whose sum is σ = 301140000. Its totient is φ = 50893056.

The previous prime is 135265133. The next prime is 135265189. The reversal of 135265180 is 81562531.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135265189) 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, 55426 + ... + 57814.

It is an arithmetic number, because the mean of its divisors is an integer number (6273750).

Almost surely, 2135265180 is an apocalyptic number.

135265180 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 135265180, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (150570000).

135265180 is an abundant number, since it is smaller than the sum of its proper divisors (165874820).

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

135265180 is a wasteful number, since it uses less digits than its factorization.

135265180 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2566 (or 2564 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 31.

The square root of 135265180 is about 11630.3559704766. The cubic root of 135265180 is about 513.3284542555.

The spelling of 135265180 in words is "one hundred thirty-five million, two hundred sixty-five thousand, one hundred eighty".

Divisors: 1 2 4 5 10 19 20 38 76 95 149 190 298 380 596 745 1490 2389 2831 2980 4778 5662 9556 11324 11945 14155 23890 28310 45391 47780 56620 90782 181564 226955 355961 453910 711922 907820 1423844 1779805 3559610 6763259 7119220 13526518 27053036 33816295 67632590 135265180