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135028479 = 3220320431
BaseRepresentation
bin10000000110001…
…01111011111111
3100102002011020210
420003011323333
5234031402404
621222043503
73226503015
oct1003057377
9312064223
10135028479
116a246993
1239279593
1321c89511
1413d0c8b5
15bcc3689
hex80c5eff

135028479 has 8 divisors (see below), whose sum is σ = 180128512. Its totient is φ = 89973720.

The previous prime is 135028477. The next prime is 135028483. The reversal of 135028479 is 974820531.

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

It is not a de Polignac number, because 135028479 - 21 = 135028477 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 (135028477) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3607 + ... + 16824.

It is an arithmetic number, because the mean of its divisors is an integer number (22516064).

Almost surely, 2135028479 is an apocalyptic number.

135028479 is a deficient number, since it is larger than the sum of its proper divisors (45100033).

135028479 is a wasteful number, since it uses less digits than its factorization.

135028479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22637.

The product of its (nonzero) digits is 60480, while the sum is 39.

The square root of 135028479 is about 11620.1755150256. The cubic root of 135028479 is about 513.0288543593.

The spelling of 135028479 in words is "one hundred thirty-five million, twenty-eight thousand, four hundred seventy-nine".

Divisors: 1 3 2203 6609 20431 61293 45009493 135028479