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42202 = 221101
BaseRepresentation
bin1010010011011010
32010220001
422103122
52322302
6523214
7234016
oct122332
963801
1042202
1129786
122050a
1316294
1411546
15c787
hexa4da

42202 has 4 divisors (see below), whose sum is σ = 63306. Its totient is φ = 21100.

The previous prime is 42197. The next prime is 42209. The reversal of 42202 is 20224.

It is a happy number.

42202 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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., 39601 + 2601 = 199^2 + 51^2 .

It is not an unprimeable number, because it can be changed into a prime (42209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10549 + ... + 10552.

242202 is an apocalyptic number.

42202 is a deficient number, since it is larger than the sum of its proper divisors (21104).

42202 is a wasteful number, since it uses less digits than its factorization.

42202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21103.

The product of its (nonzero) digits is 32, while the sum is 10.

The square root of 42202 is about 205.4312537079. The cubic root of 42202 is about 34.8159041234.

Adding to 42202 its reverse (20224), we get a palindrome (62426).

The spelling of 42202 in words is "forty-two thousand, two hundred two", and thus it is an iban number.

Divisors: 1 2 21101 42202