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360081 = 3240009
BaseRepresentation
bin1010111111010010001
3200021221100
41113322101
543010311
611415013
73026541
oct1277221
9607840
10360081
11226597
12154469
13c7b87
1495321
1571a56
hex57e91

360081 has 6 divisors (see below), whose sum is σ = 520130. Its totient is φ = 240048.

The previous prime is 360071. The next prime is 360089. The reversal of 360081 is 180063.

360081 is digitally balanced in base 7, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 360000 + 81 = 600^2 + 9^2 .

It is not a de Polignac number, because 360081 - 25 = 360049 is a prime.

It is a super-2 number, since 2×3600812 = 259316653122, which contains 22 as substring.

It is a Duffinian number.

360081 is a modest number, since divided by 81 gives 36 as remainder.

360081 is strictly pandigital in base 7.

It is a nialpdrome in base 14.

It is not an unprimeable number, because it can be changed into a prime (360089) 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 5 ways as a sum of consecutive naturals, for example, 19996 + ... + 20013.

2360081 is an apocalyptic number.

It is an amenable number.

360081 is a deficient number, since it is larger than the sum of its proper divisors (160049).

360081 is a wasteful number, since it uses less digits than its factorization.

360081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40015 (or 40012 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 360081 is about 600.0674962036. The cubic root of 360081 is about 71.1432010297.

Subtracting from 360081 its sum of digits (18), we obtain a palindrome (360063).

It can be divided in two parts, 3600 and 81, that multiplied together give a square (291600 = 5402).

The spelling of 360081 in words is "three hundred sixty thousand, eighty-one".

Divisors: 1 3 9 40009 120027 360081