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199252 = 22109457
BaseRepresentation
bin110000101001010100
3101010022201
4300221110
522334002
64134244
71456624
oct605124
9333281
10199252
11126779
1297384
136c901
1452884
153e087
hex30a54

199252 has 12 divisors (see below), whose sum is σ = 352660. Its totient is φ = 98496.

The previous prime is 199247. The next prime is 199261. The reversal of 199252 is 252991.

It can be written as a sum of positive squares in 2 ways, for example, as 156816 + 42436 = 396^2 + 206^2 .

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is an Ulam number.

It is a plaindrome in base 11.

It is a self number, because there is not a number n which added to its sum of digits gives 199252.

It is a congruent number.

It is an unprimeable number.

199252 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 208 + ... + 664.

2199252 is an apocalyptic number.

It is an amenable number.

199252 is a deficient number, since it is larger than the sum of its proper divisors (153408).

199252 is a wasteful number, since it uses less digits than its factorization.

199252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 570 (or 568 counting only the distinct ones).

The product of its digits is 1620, while the sum is 28.

The square root of 199252 is about 446.3765226801. The cubic root of 199252 is about 58.4073581771.

The spelling of 199252 in words is "one hundred ninety-nine thousand, two hundred fifty-two".

Divisors: 1 2 4 109 218 436 457 914 1828 49813 99626 199252