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36080081 = 277130253
BaseRepresentation
bin1000100110100…
…0100111010001
32111220001120022
42021220213101
533214030311
63325153225
7615450512
oct211504721
974801508
1036080081
1119403554
12100bb815
13762357b
144b12a09
15327a5db
hex22689d1

36080081 has 4 divisors (see below), whose sum is σ = 36210612. Its totient is φ = 35949552.

The previous prime is 36080059. The next prime is 36080087. The reversal of 36080081 is 18008063.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 18008063 = 82321881.

It can be written as a sum of positive squares in 2 ways, for example, as 9247681 + 26832400 = 3041^2 + 5180^2 .

It is a cyclic number.

It is not a de Polignac number, because 36080081 - 214 = 36063697 is a prime.

It is a super-2 number, since 2×360800812 = 2603544489933122, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 36080081.

It is not an unprimeable number, because it can be changed into a prime (36080087) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 64850 + ... + 65403.

It is an arithmetic number, because the mean of its divisors is an integer number (9052653).

Almost surely, 236080081 is an apocalyptic number.

It is an amenable number.

36080081 is a deficient number, since it is larger than the sum of its proper divisors (130531).

36080081 is a wasteful number, since it uses less digits than its factorization.

36080081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130530.

The product of its (nonzero) digits is 1152, while the sum is 26.

The square root of 36080081 is about 6006.6697095812. The cubic root of 36080081 is about 330.4373784189.

The spelling of 36080081 in words is "thirty-six million, eighty thousand, eighty-one".

Divisors: 1 277 130253 36080081