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4212222 = 237100291
BaseRepresentation
bin10000000100010111111110
321221000002020
4100010113332
52034242342
6230141010
750542350
oct20042776
97830066
104212222
112417783
1214b1766
13b46351
147b90d0
155830ec
hex4045fe

4212222 has 16 divisors (see below), whose sum is σ = 9628032. Its totient is φ = 1203480.

The previous prime is 4212211. The next prime is 4212227. The reversal of 4212222 is 2222124.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4212227) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 50104 + ... + 50187.

It is an arithmetic number, because the mean of its divisors is an integer number (601752).

Almost surely, 24212222 is an apocalyptic number.

4212222 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

4212222 is an abundant number, since it is smaller than the sum of its proper divisors (5415810).

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

4212222 is a wasteful number, since it uses less digits than its factorization.

4212222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100303.

The product of its digits is 128, while the sum is 15.

The square root of 4212222 is about 2052.3698497103. The cubic root of 4212222 is about 161.4992156186.

Adding to 4212222 its reverse (2222124), we get a palindrome (6434346).

It can be divided in two parts, 4 and 212222, that added together give a triangular number (212226 = T651).

The spelling of 4212222 in words is "four million, two hundred twelve thousand, two hundred twenty-two".

Divisors: 1 2 3 6 7 14 21 42 100291 200582 300873 601746 702037 1404074 2106111 4212222