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136480 = 255853
BaseRepresentation
bin100001010100100000
320221012211
4201110200
513331410
62531504
71105621
oct412440
9227184
10136480
11935a3
1266b94
134a176
1437a48
152a68a
hex21520

136480 has 24 divisors (see below), whose sum is σ = 322812. Its totient is φ = 54528.

The previous prime is 136471. The next prime is 136481. The reversal of 136480 is 84631.

It can be written as a sum of positive squares in 2 ways, for example, as 121104 + 15376 = 348^2 + 124^2 .

It is not an unprimeable number, because it can be changed into a prime (136481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 267 + ... + 586.

2136480 is an apocalyptic number.

136480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

136480 is an abundant number, since it is smaller than the sum of its proper divisors (186332).

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

136480 is an equidigital number, since it uses as much as digits as its factorization.

136480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 868 (or 860 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 136480 is about 369.4319964486. The cubic root of 136480 is about 51.4860615184.

It can be divided in two parts, 1364 and 80, that added together give a square (1444 = 382).

The spelling of 136480 in words is "one hundred thirty-six thousand, four hundred eighty".

Divisors: 1 2 4 5 8 10 16 20 32 40 80 160 853 1706 3412 4265 6824 8530 13648 17060 27296 34120 68240 136480