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199432 = 2397257
BaseRepresentation
bin110000101100001000
3101010120101
4300230020
522340212
64135144
71460302
oct605410
9333511
10199432
11126922
12974b4
136ca0c
1452972
153e157
hex30b08

199432 has 16 divisors (see below), whose sum is σ = 379260. Its totient is φ = 98304.

The previous prime is 199429. The next prime is 199447. The reversal of 199432 is 234991.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 181476 + 17956 = 426^2 + 134^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 199432.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 648 + ... + 904.

2199432 is an apocalyptic number.

It is an amenable number.

199432 is a deficient number, since it is larger than the sum of its proper divisors (179828).

199432 is a wasteful number, since it uses less digits than its factorization.

199432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 360 (or 356 counting only the distinct ones).

The product of its digits is 1944, while the sum is 28.

The square root of 199432 is about 446.5781006722. The cubic root of 199432 is about 58.4249408701.

The spelling of 199432 in words is "one hundred ninety-nine thousand, four hundred thirty-two".

Divisors: 1 2 4 8 97 194 257 388 514 776 1028 2056 24929 49858 99716 199432