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14131806 = 23131031759
BaseRepresentation
bin110101111010…
…001001011110
3222120222012020
4311322021132
512104204211
61222521010
7231055413
oct65721136
928528166
1014131806
117a82487
124896166
132c0a420
141c3c10a
151392306
hexd7a25e

14131806 has 32 divisors (see below), whose sum is σ = 30750720. Its totient is φ = 4303584.

The previous prime is 14131781. The next prime is 14131807. The reversal of 14131806 is 60813141.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14131807) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7155 + ... + 8913.

It is an arithmetic number, because the mean of its divisors is an integer number (960960).

Almost surely, 214131806 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 14131806, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15375360).

14131806 is an abundant number, since it is smaller than the sum of its proper divisors (16618914).

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

14131806 is a wasteful number, since it uses less digits than its factorization.

14131806 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1880.

The product of its (nonzero) digits is 576, while the sum is 24.

The square root of 14131806 is about 3759.2294423193. The cubic root of 14131806 is about 241.7682251442.

Adding to 14131806 its reverse (60813141), we get a palindrome (74944947).

The spelling of 14131806 in words is "fourteen million, one hundred thirty-one thousand, eight hundred six".

Divisors: 1 2 3 6 13 26 39 78 103 206 309 618 1339 1759 2678 3518 4017 5277 8034 10554 22867 45734 68601 137202 181177 362354 543531 1087062 2355301 4710602 7065903 14131806