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20302211012 = 2232057158329
BaseRepresentation
bin10010111010000110…
…110010011111000100
31221101220012011211012
4102322012302133010
5313034331223022
613154322501352
71316051642366
oct227206623704
957356164735
1020302211012
118679083696
123b27204858
131bb719ac15
14da84b2d36
157dc564de2
hex4ba1b27c4

20302211012 has 12 divisors (see below), whose sum is σ = 35530201980. Its totient is φ = 10150724736.

The previous prime is 20302211009. The next prime is 20302211029. The reversal of 20302211012 is 21011220302.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 19888332676 + 413878336 = 141026^2 + 20344^2 .

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 3 ways as a sum of consecutive naturals, for example, 49064 + ... + 207392.

It is an arithmetic number, because the mean of its divisors is an integer number (2960850165).

Almost surely, 220302211012 is an apocalyptic number.

It is an amenable number.

20302211012 is a deficient number, since it is larger than the sum of its proper divisors (15227990968).

20302211012 is a wasteful number, since it uses less digits than its factorization.

20302211012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190390 (or 190388 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 20302211012 its reverse (21011220302), we get a palindrome (41313431314).

The spelling of 20302211012 in words is "twenty billion, three hundred two million, two hundred eleven thousand, twelve".

Divisors: 1 2 4 32057 64114 128228 158329 316658 633316 5075552753 10151105506 20302211012