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20022061213 = 711550147269
BaseRepresentation
bin10010101001011010…
…000110100010011101
31220200101001002112201
4102221122012202131
5312001121424323
613110434131501
71306110466210
oct225132064235
956611032481
1020022061213
118544a27a30
123a69420b91
131b711302cb
14d7d1c9777
157c2b778ad
hex4a968689d

20022061213 has 16 divisors (see below), whose sum is σ = 24967635840. Its totient is φ = 15598440000.

The previous prime is 20022061207. The next prime is 20022061249. The reversal of 20022061213 is 31216022002.

It is not a de Polignac number, because 20022061213 - 213 = 20022053021 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20022062213) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 399943 + ... + 447211.

It is an arithmetic number, because the mean of its divisors is an integer number (1560477240).

Almost surely, 220022061213 is an apocalyptic number.

It is an amenable number.

20022061213 is a deficient number, since it is larger than the sum of its proper divisors (4945574627).

20022061213 is a wasteful number, since it uses less digits than its factorization.

20022061213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52788.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 20022061213 its reverse (31216022002), we get a palindrome (51238083215).

The spelling of 20022061213 in words is "twenty billion, twenty-two million, sixty-one thousand, two hundred thirteen".

Divisors: 1 7 11 77 5501 38507 47269 60511 330883 423577 519959 3639713 260026769 1820187383 2860294459 20022061213