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20013022215 = 335330144909
BaseRepresentation
bin10010101000110111…
…100111110000000111
31220122202000212101000
4102220313213300013
5311441313202330
613105512304343
71305640611354
oct225067476007
956582025330
1020013022215
11853a91388a
123a663a20b3
131b6c2b6ca4
14d7bd1562b
157c1e8e560
hex4a8de7c07

20013022215 has 32 divisors (see below), whose sum is σ = 35590276800. Its totient is φ = 10670140800.

The previous prime is 20013022193. The next prime is 20013022231. The reversal of 20013022215 is 51222031002.

It is not a de Polignac number, because 20013022215 - 218 = 20012760071 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 423181 + ... + 468089.

It is an arithmetic number, because the mean of its divisors is an integer number (1112196150).

Almost surely, 220013022215 is an apocalyptic number.

20013022215 is a deficient number, since it is larger than the sum of its proper divisors (15577254585).

20013022215 is a wasteful number, since it uses less digits than its factorization.

20013022215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48224 (or 48218 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

Adding to 20013022215 its reverse (51222031002), we get a palindrome (71235053217).

The spelling of 20013022215 in words is "twenty billion, thirteen million, twenty-two thousand, two hundred fifteen".

Divisors: 1 3 5 9 15 27 45 135 3301 9903 16505 29709 44909 49515 89127 134727 148545 224545 404181 445635 673635 1212543 2020905 6062715 148244609 444733827 741223045 1334201481 2223669135 4002604443 6671007405 20013022215