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134205656 = 23131290439
BaseRepresentation
bin1111111111111…
…01000011011000
3100100112100112212
413333331003120
5233324040111
621152254252
73216505064
oct777750330
9310470485
10134205656
1169834772
1238b41388
1321a5bb40
1413b76aa4
15bbae98b
hex7ffd0d8

134205656 has 16 divisors (see below), whose sum is σ = 270992400. Its totient is φ = 61941024.

The previous prime is 134205653. The next prime is 134205677. The reversal of 134205656 is 656502431.

It is a super-2 number, since 2×1342056562 = 36022316204780672, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134205653) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 645116 + ... + 645323.

It is an arithmetic number, because the mean of its divisors is an integer number (16937025).

Almost surely, 2134205656 is an apocalyptic number.

It is an amenable number.

134205656 is an abundant number, since it is smaller than the sum of its proper divisors (136786744).

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

134205656 is a wasteful number, since it uses less digits than its factorization.

134205656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1290458 (or 1290454 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 32.

The square root of 134205656 is about 11584.7164833672. The cubic root of 134205656 is about 511.9846491980.

The spelling of 134205656 in words is "one hundred thirty-four million, two hundred five thousand, six hundred fifty-six".

Divisors: 1 2 4 8 13 26 52 104 1290439 2580878 5161756 10323512 16775707 33551414 67102828 134205656