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BaseRepresentation
bin110101101111110010
3102011222120
4311233302
524021041
64415110
71604553
oct655762
9364876
10220146
11140443
12a7496
1379284
145a32a
1545366
hex35bf2

220146 has 8 divisors (see below), whose sum is σ = 440304. Its totient is φ = 73380.

The previous prime is 220141. The next prime is 220147. The reversal of 220146 is 641022.

Adding to 220146 its reverse (641022), we get a palindrome (861168).

It is a sphenic number, since it is the product of 3 distinct primes.

220146 is an admirable number.

It is a super-2 number, since 2×2201462 = 96928522632, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (220141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18340 + ... + 18351.

It is an arithmetic number, because the mean of its divisors is an integer number (55038).

2220146 is an apocalyptic number.

220146 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

220146 is a wasteful number, since it uses less digits than its factorization.

220146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36696.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 220146 is about 469.1971866923. The cubic root of 220146 is about 60.3814585720.

The spelling of 220146 in words is "two hundred twenty thousand, one hundred forty-six".

Divisors: 1 2 3 6 36691 73382 110073 220146