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135648860 = 2256782443
BaseRepresentation
bin10000001010111…
…01011001011100
3100110020200020212
420011131121130
5234211230420
621243231552
73234665504
oct1005353134
9313220225
10135648860
116a62aaa6
12395185b8
13221459c9
1414030a04
15bd973c5
hex815d65c

135648860 has 12 divisors (see below), whose sum is σ = 284862648. Its totient is φ = 54259536.

The previous prime is 135648833. The next prime is 135648883. The reversal of 135648860 is 68846531.

It is a super-2 number, since 2×1356488602 = 36801226438599200, which contains 22 as substring.

It is a hoax number, since the sum of its digits (41) coincides with the sum of the digits of its distinct prime factors.

It is a congruent 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 3 ways as a sum of consecutive naturals, for example, 3391202 + ... + 3391241.

It is an arithmetic number, because the mean of its divisors is an integer number (23738554).

Almost surely, 2135648860 is an apocalyptic number.

135648860 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

135648860 is an abundant number, since it is smaller than the sum of its proper divisors (149213788).

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

135648860 is a wasteful number, since it uses less digits than its factorization.

135648860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6782452 (or 6782450 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 41.

The square root of 135648860 is about 11646.8390561560. The cubic root of 135648860 is about 513.8133485305.

The spelling of 135648860 in words is "one hundred thirty-five million, six hundred forty-eight thousand, eight hundred sixty".

Divisors: 1 2 4 5 10 20 6782443 13564886 27129772 33912215 67824430 135648860