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14215340 = 2254491583
BaseRepresentation
bin110110001110…
…100010101100
3222202012210002
4312032202230
512114342330
61224403432
7231554066
oct66164254
928665702
1014215340
11802a217
124916578
132c39459
141c60736
1513abe45
hexd8e8ac

14215340 has 24 divisors (see below), whose sum is σ = 29937600. Its totient is φ = 5669888.

The previous prime is 14215321. The next prime is 14215343. The reversal of 14215340 is 4351241.

14215340 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 not an unprimeable number, because it can be changed into a prime (14215343) 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, 8189 + ... + 9771.

It is an arithmetic number, because the mean of its divisors is an integer number (1247400).

Almost surely, 214215340 is an apocalyptic number.

14215340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

14215340 is an abundant number, since it is smaller than the sum of its proper divisors (15722260).

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

14215340 is a wasteful number, since it uses less digits than its factorization.

14215340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2041 (or 2039 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 14215340 is about 3770.3235935394. The cubic root of 14215340 is about 242.2436586938.

Adding to 14215340 its reverse (4351241), we get a palindrome (18566581).

The spelling of 14215340 in words is "fourteen million, two hundred fifteen thousand, three hundred forty".

Divisors: 1 2 4 5 10 20 449 898 1583 1796 2245 3166 4490 6332 7915 8980 15830 31660 710767 1421534 2843068 3553835 7107670 14215340