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20033219 = 109239769
BaseRepresentation
bin100110001101…
…0111011000011
31101200210102002
41030122323003
520112030334
61553214215
7332164613
oct114327303
941623362
1020033219
1110343288
12686136b
1341c559b
142936a43
151b5ab7e
hex131aec3

20033219 has 8 divisors (see below), whose sum is σ = 20328000. Its totient is φ = 19740672.

The previous prime is 20033213. The next prime is 20033231. The reversal of 20033219 is 91233002.

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 20033219 - 24 = 20033203 is a prime.

It is a super-2 number, since 2×200332192 = 802659727003922, 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 20033219.

It is not an unprimeable number, because it can be changed into a prime (20033213) 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, 25667 + ... + 26435.

It is an arithmetic number, because the mean of its divisors is an integer number (2541000).

Almost surely, 220033219 is an apocalyptic number.

20033219 is a deficient number, since it is larger than the sum of its proper divisors (294781).

20033219 is a wasteful number, since it uses less digits than its factorization.

20033219 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1117.

The product of its (nonzero) digits is 324, while the sum is 20.

The square root of 20033219 is about 4475.8484111954. The cubic root of 20033219 is about 271.5919622629.

The spelling of 20033219 in words is "twenty million, thirty-three thousand, two hundred nineteen".

Divisors: 1 109 239 769 26051 83821 183791 20033219