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182013817 = 1011802117
BaseRepresentation
bin10101101100101…
…00111101111001
3110200111021000111
422312110331321
5333043420232
630021104321
74340043346
oct1266247571
9420437014
10182013817
1193818747
1250b580a1
132b92a6ab
141a25d7cd
1510ea5047
hexad94f79

182013817 has 4 divisors (see below), whose sum is σ = 183816036. Its totient is φ = 180211600.

The previous prime is 182013809. The next prime is 182013827. The reversal of 182013817 is 718310281.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 718310281 = 1355254637.

It can be written as a sum of positive squares in 2 ways, for example, as 80084601 + 101929216 = 8949^2 + 10096^2 .

It is a cyclic number.

It is not a de Polignac number, because 182013817 - 23 = 182013809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (182013827) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 900958 + ... + 901159.

It is an arithmetic number, because the mean of its divisors is an integer number (45954009).

Almost surely, 2182013817 is an apocalyptic number.

It is an amenable number.

182013817 is a deficient number, since it is larger than the sum of its proper divisors (1802219).

182013817 is a wasteful number, since it uses less digits than its factorization.

182013817 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1802218.

The product of its (nonzero) digits is 2688, while the sum is 31.

The square root of 182013817 is about 13491.2496456036. The cubic root of 182013817 is about 566.7194514075.

The spelling of 182013817 in words is "one hundred eighty-two million, thirteen thousand, eight hundred seventeen".

Divisors: 1 101 1802117 182013817