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14418220 = 2252924859
BaseRepresentation
bin110111000000…
…000100101100
31000010112002011
4313000010230
512142340340
61233011004
7233360425
oct67000454
930115064
1014418220
118158693
1249b3a64
132caa8bb
141cb464c
1513ec0ea
hexdc012c

14418220 has 24 divisors (see below), whose sum is σ = 31323600. Its totient is φ = 5568192.

The previous prime is 14418181. The next prime is 14418221. The reversal of 14418220 is 2281441.

It is a junction number, because it is equal to n+sod(n) for n = 14418191 and 14418200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14418221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11850 + ... + 13009.

It is an arithmetic number, because the mean of its divisors is an integer number (1305150).

Almost surely, 214418220 is an apocalyptic number.

14418220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

14418220 is an abundant number, since it is smaller than the sum of its proper divisors (16905380).

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

14418220 is a wasteful number, since it uses less digits than its factorization.

14418220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24897 (or 24895 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 22.

The square root of 14418220 is about 3797.1331290857. The cubic root of 14418220 is about 243.3906455774.

Adding to 14418220 its reverse (2281441), we get a palindrome (16699661).

The spelling of 14418220 in words is "fourteen million, four hundred eighteen thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 29 58 116 145 290 580 24859 49718 99436 124295 248590 497180 720911 1441822 2883644 3604555 7209110 14418220