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6220105 = 51244021
BaseRepresentation
bin10111101110100101001001
3102201000101021
4113232211021
53043020410
6341152441
7103604263
oct27564511
912630337
106220105
113569291
1220bb721
13139a248
14b7cb33
1582ceda
hex5ee949

6220105 has 4 divisors (see below), whose sum is σ = 7464132. Its totient is φ = 4976080.

The previous prime is 6220099. The next prime is 6220117. The reversal of 6220105 is 5010226.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4721929 + 1498176 = 2173^2 + 1224^2 .

It is not a de Polignac number, because 6220105 - 25 = 6220073 is a prime.

It is a super-2 number, since 2×62201052 = 77379412422050, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 622006 + ... + 622015.

It is an arithmetic number, because the mean of its divisors is an integer number (1866033).

Almost surely, 26220105 is an apocalyptic number.

It is an amenable number.

6220105 is a deficient number, since it is larger than the sum of its proper divisors (1244027).

6220105 is a wasteful number, since it uses less digits than its factorization.

6220105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1244026.

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 6220105 is about 2494.0138331613. The cubic root of 6220105 is about 183.9074144317.

The spelling of 6220105 in words is "six million, two hundred twenty thousand, one hundred five".

Divisors: 1 5 1244021 6220105