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2422212220 = 225971248563
BaseRepresentation
bin1001000001100000…
…0000011001111100
320020210211010111201
42100120000121330
514430041242340
61040204225244
7114011315131
oct22030003174
96223733451
102422212220
11103330398a
1257723b224
132c7a94c8c
1418d9a2588
15e29b279a
hex9060067c

2422212220 has 24 divisors (see below), whose sum is σ = 5139089424. Its totient is φ = 958895616.

The previous prime is 2422212203. The next prime is 2422212239. The reversal of 2422212220 is 222122242.

It is a super-2 number, since 2×24222122202 = 11734224077434656800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable 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 in 7 ways as a sum of consecutive naturals, for example, 622342 + ... + 626221.

It is an arithmetic number, because the mean of its divisors is an integer number (214128726).

Almost surely, 22422212220 is an apocalyptic number.

2422212220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2422212220 is an abundant number, since it is smaller than the sum of its proper divisors (2716877204).

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

2422212220 is a wasteful number, since it uses less digits than its factorization.

2422212220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1248669 (or 1248667 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 19.

The square root of 2422212220 is about 49215.9752519444. The cubic root of 2422212220 is about 1342.9836649527.

Adding to 2422212220 its reverse (222122242), we get a palindrome (2644334462).

The spelling of 2422212220 in words is "two billion, four hundred twenty-two million, two hundred twelve thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 97 194 388 485 970 1940 1248563 2497126 4994252 6242815 12485630 24971260 121110611 242221222 484442444 605553055 1211106110 2422212220