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20001242330 = 255519362407
BaseRepresentation
bin10010101000001010…
…101011110011011010
31220121220212101101222
4102220022223303122
5311430304223310
613104412012042
71305435516566
oct225012536332
956556771358
1020001242330
1185341a8443
123a62461022
131b69a21244
14d7a52a6a6
157c0e14055
hex4a82abcda

20001242330 has 16 divisors (see below), whose sum is σ = 36008858880. Its totient is φ = 7999025232.

The previous prime is 20001242299. The next prime is 20001242363. The reversal of 20001242330 is 3324210002.

It is a junction number, because it is equal to n+sod(n) for n = 20001242299 and 20001242308.

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 7 ways as a sum of consecutive naturals, for example, 126014 + ... + 236393.

It is an arithmetic number, because the mean of its divisors is an integer number (2250553680).

Almost surely, 220001242330 is an apocalyptic number.

20001242330 is a deficient number, since it is larger than the sum of its proper divisors (16007616550).

20001242330 is a wasteful number, since it uses less digits than its factorization.

20001242330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 367933.

The product of its (nonzero) digits is 288, while the sum is 17.

Adding to 20001242330 its reverse (3324210002), we get a palindrome (23325452332).

The spelling of 20001242330 in words is "twenty billion, one million, two hundred forty-two thousand, three hundred thirty".

Divisors: 1 2 5 10 5519 11038 27595 55190 362407 724814 1812035 3624070 2000124233 4000248466 10000621165 20001242330