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20013311210 = 252001331121
BaseRepresentation
bin10010101000111000…
…101110010011101010
31220122202120112210112
4102220320232103222
5311441401424320
613105522414322
71305643224044
oct225070562352
956582515715
1020013311210
11853aaa0a22
123a665013a2
131b6c3886a9
14d7bd8ca94
157c1ee9ec5
hex4a8e2e4ea

20013311210 has 8 divisors (see below), whose sum is σ = 36023960196. Its totient is φ = 8005324480.

The previous prime is 20013311207. The next prime is 20013311221. The reversal of 20013311210 is 1211331002.

It can be written as a sum of positive squares in 2 ways, for example, as 19633334161 + 379977049 = 140119^2 + 19493^2 .

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

It is a super-4 number, since 4×200133112104 (a number of 42 digits) contains 4444 as substring.

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, 1000665551 + ... + 1000665570.

Almost surely, 220013311210 is an apocalyptic number.

20013311210 is a deficient number, since it is larger than the sum of its proper divisors (16010648986).

20013311210 is a wasteful number, since it uses less digits than its factorization.

20013311210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2001331128.

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 20013311210 its reverse (1211331002), we get a palindrome (21224642212).

The spelling of 20013311210 in words is "twenty billion, thirteen million, three hundred eleven thousand, two hundred ten".

Divisors: 1 2 5 10 2001331121 4002662242 10006655605 20013311210