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135408727 = 251643839
BaseRepresentation
bin10000001001000…
…10110001010111
3100102210110212001
420010202301113
5234131034402
621234140131
73232645426
oct1004426127
9312713761
10135408727
116a486643
1239421647
132209060c
1413dab2bd
15bd4b187
hex8122c57

135408727 has 8 divisors (see below), whose sum is σ = 136321920. Its totient is φ = 134499000.

The previous prime is 135408703. The next prime is 135408731. The reversal of 135408727 is 727804531.

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

It is a cyclic number.

It is not a de Polignac number, because 135408727 - 215 = 135375959 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135408787) 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 7 ways as a sum of consecutive naturals, for example, 160974 + ... + 161812.

It is an arithmetic number, because the mean of its divisors is an integer number (17040240).

Almost surely, 2135408727 is an apocalyptic number.

135408727 is a deficient number, since it is larger than the sum of its proper divisors (913193).

135408727 is an equidigital number, since it uses as much as digits as its factorization.

135408727 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1733.

The product of its (nonzero) digits is 47040, while the sum is 37.

The square root of 135408727 is about 11636.5255553365. The cubic root of 135408727 is about 513.5099759865.

The spelling of 135408727 in words is "one hundred thirty-five million, four hundred eight thousand, seven hundred twenty-seven".

Divisors: 1 251 643 839 161393 210589 539477 135408727