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20020212210 = 2351733857459
BaseRepresentation
bin10010101001010011…
…000011000111110010
31220200020120011012010
4102221103003013302
5312000133242320
613110330343350
71306055665425
oct225123030762
956606504163
1020020212210
118543984829
123a6888ab56
131b7093381b
14d7cc679bc
157c290eae0
hex4a94c31f2

20020212210 has 32 divisors (see below), whose sum is σ = 48326258880. Its totient is φ = 5307862208.

The previous prime is 20020212187. The next prime is 20020212211. The reversal of 20020212210 is 1221202002.

It is not an unprimeable number, because it can be changed into a prime (20020212211) 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, 1923540 + ... + 1933919.

It is an arithmetic number, because the mean of its divisors is an integer number (1510195590).

Almost surely, 220020212210 is an apocalyptic number.

20020212210 is an abundant number, since it is smaller than the sum of its proper divisors (28306046670).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20020212210 is a wasteful number, since it uses less digits than its factorization.

20020212210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3857642.

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 20020212210 its reverse (1221202002), we get a palindrome (21241414212).

The spelling of 20020212210 in words is "twenty billion, twenty million, two hundred twelve thousand, two hundred ten".

Divisors: 1 2 3 5 6 10 15 30 173 346 519 865 1038 1730 2595 5190 3857459 7714918 11572377 19287295 23144754 38574590 57861885 115723770 667340407 1334680814 2002021221 3336702035 4004042442 6673404070 10010106105 20020212210