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136179680 = 25571347199
BaseRepresentation
bin10000001110111…
…10111111100000
3100111020122101212
420013132333200
5234330222210
621302445252
73242336210
oct1007367740
9314218355
10136179680
116a96289a
1239733828
13222a04c0
141412c240
15be4e805
hex81defe0

136179680 has 192 divisors, whose sum is σ = 406425600. Its totient is φ = 41969664.

The previous prime is 136179671. The next prime is 136179691. The reversal of 136179680 is 86971631.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 684221 + ... + 684419.

It is an arithmetic number, because the mean of its divisors is an integer number (2116800).

Almost surely, 2136179680 is an apocalyptic number.

136179680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 136179680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (203212800).

136179680 is an abundant number, since it is smaller than the sum of its proper divisors (270245920).

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

136179680 is a wasteful number, since it uses less digits than its factorization.

136179680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 281 (or 273 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 41.

The square root of 136179680 is about 11669.6049633225. The cubic root of 136179680 is about 514.4826929163.

The spelling of 136179680 in words is "one hundred thirty-six million, one hundred seventy-nine thousand, six hundred eighty".