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213020110220 = 22540126561111
BaseRepresentation
bin1100011001100011111…
…1001110110110001100
3202100211201220210222212
43012120333032312030
511442231122011340
6241505440125552
721250560030011
oct3063077166614
9670751823885
10213020110220
1182383331775
12353500068b8
131711a9124c8
14a44b3a3708
15581b549a65
hex3198fced8c

213020110220 has 24 divisors (see below), whose sum is σ = 448457815008. Its totient is φ = 84995552000.

The previous prime is 213020110211. The next prime is 213020110243. The reversal of 213020110220 is 22011020312.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 213020110195 and 213020110204.

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, 13272536 + ... + 13288575.

It is an arithmetic number, because the mean of its divisors is an integer number (18685742292).

Almost surely, 2213020110220 is an apocalyptic number.

213020110220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

213020110220 is an abundant number, since it is smaller than the sum of its proper divisors (235437704788).

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

213020110220 is a wasteful number, since it uses less digits than its factorization.

213020110220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26561521 (or 26561519 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 213020110220 its reverse (22011020312), we get a palindrome (235031130532).

The spelling of 213020110220 in words is "two hundred thirteen billion, twenty million, one hundred ten thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 401 802 1604 2005 4010 8020 26561111 53122222 106244444 132805555 265611110 531222220 10651005511 21302011022 42604022044 53255027555 106510055110 213020110220