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200020100220 = 223351498392963
BaseRepresentation
bin1011101001001000100…
…0001000010001111100
3201010021202002212211000
42322102020020101330
511234120121201340
6231515444530300
720310453541143
oct2722210102174
9633252085730
10200020100220
117791214a856
12329223b0990
1315b285390b5
149976a3475a
15530a0e4d30
hex2e9220847c

200020100220 has 192 divisors, whose sum is σ = 627419520000. Its totient is φ = 52899708672.

The previous prime is 200020100173. The next prime is 200020100251. The reversal of 200020100220 is 22001020002.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 67504459 + ... + 67507421.

It is an arithmetic number, because the mean of its divisors is an integer number (3267810000).

Almost surely, 2200020100220 is an apocalyptic number.

200020100220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 200020100220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (313709760000).

200020100220 is an abundant number, since it is smaller than the sum of its proper divisors (427399419780).

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

200020100220 is a wasteful number, since it uses less digits than its factorization.

200020100220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3969 (or 3961 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 9.

Adding to 200020100220 its reverse (22001020002), we get a palindrome (222021120222).

The spelling of 200020100220 in words is "two hundred billion, twenty million, one hundred thousand, two hundred twenty".