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14202021 = 317281991
BaseRepresentation
bin110110001011…
…010010100101
3222201112111210
4312023102211
512113431041
61224222033
7231500211
oct66132245
928645453
1014202021
118020209
12490a919
132c33382
141c59941
1513a8016
hexd8b4a5

14202021 has 16 divisors (see below), whose sum is σ = 20141568. Its totient is φ = 8870400.

The previous prime is 14202011. The next prime is 14202053. The reversal of 14202021 is 12020241.

14202021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 14202021 - 25 = 14201989 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 14201988 and 14202006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14202011) 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, 13836 + ... + 14826.

It is an arithmetic number, because the mean of its divisors is an integer number (1258848).

Almost surely, 214202021 is an apocalyptic number.

It is an amenable number.

14202021 is a deficient number, since it is larger than the sum of its proper divisors (5939547).

14202021 is a wasteful number, since it uses less digits than its factorization.

14202021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1292.

The product of its (nonzero) digits is 32, while the sum is 12.

The square root of 14202021 is about 3768.5568855996. The cubic root of 14202021 is about 242.1679786777.

Adding to 14202021 its reverse (12020241), we get a palindrome (26222262).

The spelling of 14202021 in words is "fourteen million, two hundred two thousand, twenty-one".

Divisors: 1 3 17 51 281 843 991 2973 4777 14331 16847 50541 278471 835413 4734007 14202021