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14443220 = 2251165651
BaseRepresentation
bin110111000110…
…001011010100
31000011210101002
4313012023110
512144140340
61233322432
7233523341
oct67061324
930153332
1014443220
118175450
124a06418
132cb90ac
141cbd7c8
151404715
hexdc62d4

14443220 has 24 divisors (see below), whose sum is σ = 33088608. Its totient is φ = 5252000.

The previous prime is 14443213. The next prime is 14443237. The reversal of 14443220 is 2234441.

14443220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 14443192 and 14443201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32606 + ... + 33045.

It is an arithmetic number, because the mean of its divisors is an integer number (1378692).

Almost surely, 214443220 is an apocalyptic number.

14443220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

14443220 is an abundant number, since it is smaller than the sum of its proper divisors (18645388).

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

14443220 is a wasteful number, since it uses less digits than its factorization.

14443220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65671 (or 65669 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 14443220 is about 3800.4236605936. The cubic root of 14443220 is about 243.5312374280.

Adding to 14443220 its reverse (2234441), we get a palindrome (16677661).

It can be divided in two parts, 1444 and 3220, that added together give a palindrome (4664).

The spelling of 14443220 in words is "fourteen million, four hundred forty-three thousand, two hundred twenty".

Divisors: 1 2 4 5 10 11 20 22 44 55 110 220 65651 131302 262604 328255 656510 722161 1313020 1444322 2888644 3610805 7221610 14443220