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20283801 = 313035189
BaseRepresentation
bin100110101100…
…0000110011001
31102011112010220
41031120012121
520143040201
62002430253
7334260306
oct115300631
942145126
1020283801
11104a457a
126962389
134282665
1429a00ad
151baa036
hex1358199

20283801 has 8 divisors (see below), whose sum is σ = 27071040. Its totient is φ = 13509552.

The previous prime is 20283799. The next prime is 20283821. The reversal of 20283801 is 10838202.

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

It is not a de Polignac number, because 20283801 - 21 = 20283799 is a prime.

It is a super-2 number, since 2×202838012 = 822865166015202, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20283821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1315 + ... + 6503.

It is an arithmetic number, because the mean of its divisors is an integer number (3383880).

Almost surely, 220283801 is an apocalyptic number.

It is an amenable number.

20283801 is a deficient number, since it is larger than the sum of its proper divisors (6787239).

20283801 is a wasteful number, since it uses less digits than its factorization.

20283801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6495.

The product of its (nonzero) digits is 768, while the sum is 24.

The square root of 20283801 is about 4503.7541007475. The cubic root of 20283801 is about 272.7196601613.

The spelling of 20283801 in words is "twenty million, two hundred eighty-three thousand, eight hundred one".

Divisors: 1 3 1303 3909 5189 15567 6761267 20283801