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BaseRepresentation
bin110101101111000110
3102011220221
4311233012
524020402
64414554
71604461
oct655706
9364827
10220102
11140403
12a745a
137924c
145a2d8
1545337
hex35bc6

220102 has 4 divisors (see below), whose sum is σ = 330156. Its totient is φ = 110050.

The previous prime is 220063. The next prime is 220123. The reversal of 220102 is 201022.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 201022 = 2100511.

It is a congruent number.

It is an unprimeable number.

220102 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 (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55024 + ... + 55027.

It is an arithmetic number, because the mean of its divisors is an integer number (82539).

2220102 is an apocalyptic number.

220102 is a deficient number, since it is larger than the sum of its proper divisors (110054).

220102 is a wasteful number, since it uses less digits than its factorization.

220102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110053.

The product of its (nonzero) digits is 8, while the sum is 7.

The square root of 220102 is about 469.1502957475. The cubic root of 220102 is about 60.3774355431.

Adding to 220102 its reverse (201022), we get a palindrome (421124).

It can be divided in two parts, 2 and 20102, that multiplied together give a palindrome (40204).

The spelling of 220102 in words is "two hundred twenty thousand, one hundred two", and thus it is an iban number.

Divisors: 1 2 110051 220102