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4220201 = 23183487
BaseRepresentation
bin10000000110010100101001
321221102000202
4100012110221
52040021301
6230241545
750604536
oct20062451
97842022
104220201
112422777
1214b62b5
13b49b7b
147bbd8d
1558566b
hex406529

4220201 has 4 divisors (see below), whose sum is σ = 4403712. Its totient is φ = 4036692.

The previous prime is 4220189. The next prime is 4220207. The reversal of 4220201 is 1020224.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 4220201 - 26 = 4220137 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4220207) 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, 91721 + ... + 91766.

It is an arithmetic number, because the mean of its divisors is an integer number (1100928).

Almost surely, 24220201 is an apocalyptic number.

It is an amenable number.

4220201 is a deficient number, since it is larger than the sum of its proper divisors (183511).

4220201 is a wasteful number, since it uses less digits than its factorization.

4220201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183510.

The product of its (nonzero) digits is 32, while the sum is 11.

The square root of 4220201 is about 2054.3127804694. The cubic root of 4220201 is about 161.6011245755.

Adding to 4220201 its reverse (1020224), we get a palindrome (5240425).

The spelling of 4220201 in words is "four million, two hundred twenty thousand, two hundred one".

Divisors: 1 23 183487 4220201