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21482327 = 431792791
BaseRepresentation
bin101000111110…
…0101101010111
31111102102012202
41101330231113
520444413302
62044235115
7350411456
oct121745527
944372182
1021482327
1111142a99
12723ba9b
1345b2049
142bd2b9d
151d45202
hex147cb57

21482327 has 8 divisors (see below), whose sum is σ = 22112640. Its totient is φ = 20858040.

The previous prime is 21482303. The next prime is 21482353. The reversal of 21482327 is 72328412.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 21482327 - 212 = 21478231 is a prime.

It is a super-2 number, since 2×214823272 = 922980746669858, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 21482327.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21482387) 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, 6302 + ... + 9092.

It is an arithmetic number, because the mean of its divisors is an integer number (2764080).

Almost surely, 221482327 is an apocalyptic number.

21482327 is a deficient number, since it is larger than the sum of its proper divisors (630313).

21482327 is a wasteful number, since it uses less digits than its factorization.

21482327 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3013.

The product of its digits is 5376, while the sum is 29.

The square root of 21482327 is about 4634.9031273588. The cubic root of 21482327 is about 277.9886776611.

The spelling of 21482327 in words is "twenty-one million, four hundred eighty-two thousand, three hundred twenty-seven".

Divisors: 1 43 179 2791 7697 120013 499589 21482327