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20104443330 = 2353121617681
BaseRepresentation
bin10010101110010100…
…010111010111000010
31220220010001112120020
4102232110113113002
5312133214141310
613122535554310
71311130643256
oct225624272702
956803045506
1020104443330
118587485924
123a90b2b996
131b85215a1a
14d8a112266
157c9eec170
hex4ae5175c2

20104443330 has 32 divisors (see below), whose sum is σ = 49807139328. Its totient is φ = 5188243200.

The previous prime is 20104443329. The next prime is 20104443367. The reversal of 20104443330 is 3334440102.

It is a self number, because there is not a number n which added to its sum of digits gives 20104443330.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10807911 + ... + 10809770.

It is an arithmetic number, because the mean of its divisors is an integer number (1556473104).

Almost surely, 220104443330 is an apocalyptic number.

20104443330 is an abundant number, since it is smaller than the sum of its proper divisors (29702695998).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20104443330 is a wasteful number, since it uses less digits than its factorization.

20104443330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21617722.

The product of its (nonzero) digits is 3456, while the sum is 24.

Adding to 20104443330 its reverse (3334440102), we get a palindrome (23438883432).

The spelling of 20104443330 in words is "twenty billion, one hundred four million, four hundred forty-three thousand, three hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 31 62 93 155 186 310 465 930 21617681 43235362 64853043 108088405 129706086 216176810 324265215 648530430 670148111 1340296222 2010444333 3350740555 4020888666 6701481110 10052221665 20104443330