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20016026810 = 2513153969437
BaseRepresentation
bin10010101001000011…
…000101010010111010
31220122221200111220022
4102221003011102322
5311443100324220
613110100530442
71306005264203
oct225103052272
956587614808
1020016026810
11854158621a
123a673b0a22
131b6cac9760
14d7c4985aa
157c2384925
hex4a90c54ba

20016026810 has 16 divisors (see below), whose sum is σ = 38800298376. Its totient is φ = 7390532928.

The previous prime is 20016026803. The next prime is 20016026839. The reversal of 20016026810 is 1862061002.

20016026810 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 10870356121 + 9145670689 = 104261^2 + 95633^2 .

It is a super-2 number, since 2×200160268102 (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a self number, because there is not a number n which added to its sum of digits gives 20016026810.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 76984589 + ... + 76984848.

Almost surely, 220016026810 is an apocalyptic number.

20016026810 is a deficient number, since it is larger than the sum of its proper divisors (18784271566).

20016026810 is a wasteful number, since it uses less digits than its factorization.

20016026810 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153969457.

The product of its (nonzero) digits is 1152, while the sum is 26.

Adding to 20016026810 its reverse (1862061002), we get a palindrome (21878087812).

The spelling of 20016026810 in words is "twenty billion, sixteen million, twenty-six thousand, eight hundred ten".

Divisors: 1 2 5 10 13 26 65 130 153969437 307938874 769847185 1539694370 2001602681 4003205362 10008013405 20016026810