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135113945 = 5149181361
BaseRepresentation
bin10000000110110…
…10110011011001
3100102020111111012
420003122303121
5234042121240
621223543305
73230310131
oct1003326331
9312214435
10135113945
116a2a511a
12392bab35
1321cb93a5
1413d31ac1
15bcddb65
hex80dacd9

135113945 has 8 divisors (see below), whose sum is σ = 163225800. Its totient is φ = 107365120.

The previous prime is 135113933. The next prime is 135113969. The reversal of 135113945 is 549311531.

It can be written as a sum of positive squares in 4 ways, for example, as 6677056 + 128436889 = 2584^2 + 11333^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 135113945 - 220 = 134065369 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 89936 + ... + 91425.

It is an arithmetic number, because the mean of its divisors is an integer number (20403225).

Almost surely, 2135113945 is an apocalyptic number.

It is an amenable number.

135113945 is a deficient number, since it is larger than the sum of its proper divisors (28111855).

135113945 is a wasteful number, since it uses less digits than its factorization.

135113945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181515.

The product of its digits is 8100, while the sum is 32.

The square root of 135113945 is about 11623.8524164754. The cubic root of 135113945 is about 513.1370717190.

The spelling of 135113945 in words is "one hundred thirty-five million, one hundred thirteen thousand, nine hundred forty-five".

Divisors: 1 5 149 745 181361 906805 27022789 135113945