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135648887 = 1115181667
BaseRepresentation
bin10000001010111…
…01011001110111
3100110020200021212
420011131121313
5234211231022
621243232035
73234665543
oct1005353167
9313220255
10135648887
116a630020
123951861b
1322145a1a
1414030a23
15bd973e2
hex815d677

135648887 has 8 divisors (see below), whose sum is σ = 148962432. Its totient is φ = 122499000.

The previous prime is 135648883. The next prime is 135648907. The reversal of 135648887 is 788846531.

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 135648887 - 22 = 135648883 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 (135648883) 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, 39173 + ... + 42494.

It is an arithmetic number, because the mean of its divisors is an integer number (18620304).

Almost surely, 2135648887 is an apocalyptic number.

135648887 is a deficient number, since it is larger than the sum of its proper divisors (13313545).

135648887 is a wasteful number, since it uses less digits than its factorization.

135648887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81829.

The product of its digits is 1290240, while the sum is 50.

The square root of 135648887 is about 11646.8402152687. The cubic root of 135648887 is about 513.8133826209.

The spelling of 135648887 in words is "one hundred thirty-five million, six hundred forty-eight thousand, eight hundred eighty-seven".

Divisors: 1 11 151 1661 81667 898337 12331717 135648887