Search a number
-
+
221138 = 2110569
BaseRepresentation
bin110101111111010010
3102020100022
4311333102
524034023
64423442
71610501
oct657722
9366308
10221138
11141165
12a7b82
1379868
145a838
15457c8
hex35fd2

221138 has 4 divisors (see below), whose sum is σ = 331710. Its totient is φ = 110568.

The previous prime is 221101. The next prime is 221159. The reversal of 221138 is 831122.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 182329 + 38809 = 427^2 + 197^2 .

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 221138.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55283 + ... + 55286.

2221138 is an apocalyptic number.

221138 is a deficient number, since it is larger than the sum of its proper divisors (110572).

221138 is a wasteful number, since it uses less digits than its factorization.

221138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110571.

The product of its digits is 96, while the sum is 17.

The square root of 221138 is about 470.2531233283. The cubic root of 221138 is about 60.4720176587.

The spelling of 221138 in words is "two hundred twenty-one thousand, one hundred thirty-eight".

Divisors: 1 2 110569 221138