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21483201 = 319013767
BaseRepresentation
bin101000111110…
…0111011000001
31111102110102010
41101330323001
520444430301
62044243133
7350414145
oct121747301
944373363
1021483201
1111143713
1272404a9
1345b256c
142bd3225
151d455d6
hex147cec1

21483201 has 8 divisors (see below), whose sum is σ = 28666944. Its totient is φ = 14310800.

The previous prime is 21483197. The next prime is 21483211. The reversal of 21483201 is 10238412.

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 21483201 - 22 = 21483197 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21483211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3820 + ... + 7586.

It is an arithmetic number, because the mean of its divisors is an integer number (3583368).

Almost surely, 221483201 is an apocalyptic number.

It is an amenable number.

21483201 is a deficient number, since it is larger than the sum of its proper divisors (7183743).

21483201 is a wasteful number, since it uses less digits than its factorization.

21483201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5671.

The product of its (nonzero) digits is 384, while the sum is 21.

The square root of 21483201 is about 4634.9974110025. The cubic root of 21483201 is about 277.9924475632.

The spelling of 21483201 in words is "twenty-one million, four hundred eighty-three thousand, two hundred one".

Divisors: 1 3 1901 3767 5703 11301 7161067 21483201