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135756140 = 225131927481
BaseRepresentation
bin10000001011101…
…11100101101100
3100110110010102012
420011313211230
5234223144030
621245420352
73235623332
oct1005674554
9313403365
10135756140
116a6a3663
123956a6b8
13221827a0
141405bb52
15bdb9095
hex817796c

135756140 has 48 divisors (see below), whose sum is σ = 323188320. Its totient is φ = 47485440.

The previous prime is 135756139. The next prime is 135756149. The reversal of 135756140 is 41657531.

135756140 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 135756097 and 135756106.

It is not an unprimeable number, because it can be changed into a prime (135756149) 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, 8801 + ... + 18680.

It is an arithmetic number, because the mean of its divisors is an integer number (6733090).

Almost surely, 2135756140 is an apocalyptic number.

135756140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

135756140 is an abundant number, since it is smaller than the sum of its proper divisors (187432180).

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

135756140 is a wasteful number, since it uses less digits than its factorization.

135756140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27522 (or 27520 counting only the distinct ones).

The product of its (nonzero) digits is 12600, while the sum is 32.

The square root of 135756140 is about 11651.4436873720. The cubic root of 135756140 is about 513.9487652505.

The spelling of 135756140 in words is "one hundred thirty-five million, seven hundred fifty-six thousand, one hundred forty".

Divisors: 1 2 4 5 10 13 19 20 26 38 52 65 76 95 130 190 247 260 380 494 988 1235 2470 4940 27481 54962 109924 137405 274810 357253 522139 549620 714506 1044278 1429012 1786265 2088556 2610695 3572530 5221390 6787807 7145060 10442780 13575614 27151228 33939035 67878070 135756140