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220002 = 2337991
BaseRepresentation
bin110101101101100010
3102011210020
4311231202
524020002
64414310
71604256
oct655542
9364706
10220002
11140322
12a7396
13791a3
145a266
15452bc
hex35b62

220002 has 16 divisors (see below), whose sum is σ = 452352. Its totient is φ = 71280.

The previous prime is 219983. The next prime is 220009. The reversal of 220002 is 200022.

Adding to 220002 its reverse (200022), we get a palindrome (420024).

It can be divided in two parts, 2 and 20002, that multiplied together give a palindrome (40004).

It is a Harshad number since it is a multiple of its sum of digits (6).

It is a nialpdrome in base 8.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220009) by changing a digit.

220002 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 274 + ... + 717.

It is an arithmetic number, because the mean of its divisors is an integer number (28272).

2220002 is an apocalyptic number.

220002 is an abundant number, since it is smaller than the sum of its proper divisors (232350).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

220002 is a wasteful number, since it uses less digits than its factorization.

220002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1033.

The product of its (nonzero) digits is 8, while the sum is 6.

The square root of 220002 is about 469.0437079847. The cubic root of 220002 is about 60.3682903011.

The spelling of 220002 in words is "two hundred twenty thousand, two", and thus it is an iban number.