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14434220 = 225312751
BaseRepresentation
bin110111000011…
…111110101100
31000011100000202
4313003332230
512143343340
61233213032
7233455163
oct67037654
930140022
1014434220
118169709
124a01178
132cb4c78
141cba3da
151401c15
hexdc3fac

14434220 has 36 divisors (see below), whose sum is σ = 31362912. Its totient is φ = 5580000.

The previous prime is 14434201. The next prime is 14434223. The reversal of 14434220 is 2243441.

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 = 14434192 and 14434201.

It is not an unprimeable number, because it can be changed into a prime (14434223) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18845 + ... + 19595.

It is an arithmetic number, because the mean of its divisors is an integer number (871192).

Almost surely, 214434220 is an apocalyptic number.

14434220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 14434220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15681456).

14434220 is an abundant number, since it is smaller than the sum of its proper divisors (16928692).

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

14434220 is a wasteful number, since it uses less digits than its factorization.

14434220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 822 (or 789 counting only the distinct ones).

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

The square root of 14434220 is about 3799.2393975637. The cubic root of 14434220 is about 243.4806430649.

Adding to 14434220 its reverse (2243441), we get a palindrome (16677661).

The spelling of 14434220 in words is "fourteen million, four hundred thirty-four thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 31 62 124 155 310 620 751 961 1502 1922 3004 3755 3844 4805 7510 9610 15020 19220 23281 46562 93124 116405 232810 465620 721711 1443422 2886844 3608555 7217110 14434220