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20210200000 = 2655101051
BaseRepresentation
bin10010110100100111…
…110010110111000000
31221011111001112102221
4102310213302313000
5312342302400000
613141234420424
71313553602614
oct226447626700
957144045387
1020210200000
118631149431
123b00431714
131ba10c3833
14d9a1a1344
157d443c61a
hex4b49f2dc0

20210200000 has 84 divisors (see below), whose sum is σ = 50128057224. Its totient is φ = 8084000000.

The previous prime is 20210199983. The next prime is 20210200001. The reversal of 20210200000 is 201202.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20210200001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 149475 + ... + 250525.

It is an arithmetic number, because the mean of its divisors is an integer number (596762586).

Almost surely, 220210200000 is an apocalyptic number.

20210200000 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 20210200000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25064028612).

20210200000 is an abundant number, since it is smaller than the sum of its proper divisors (29917857224).

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

20210200000 is an frugal number, since it uses more digits than its factorization.

20210200000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101088 (or 101058 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 7.

Adding to 20210200000 its reverse (201202), we get a palindrome (20210401202).

The spelling of 20210200000 in words is "twenty billion, two hundred ten million, two hundred thousand".

Divisors: 1 2 4 5 8 10 16 20 25 32 40 50 64 80 100 125 160 200 250 320 400 500 625 800 1000 1250 1600 2000 2500 3125 4000 5000 6250 8000 10000 12500 20000 25000 40000 50000 100000 101051 200000 202102 404204 505255 808408 1010510 1616816 2021020 2526275 3233632 4042040 5052550 6467264 8084080 10105100 12631375 16168160 20210200 25262750 32336320 40420400 50525500 63156875 80840800 101051000 126313750 161681600 202102000 252627500 315784375 404204000 505255000 631568750 808408000 1010510000 1263137500 2021020000 2526275000 4042040000 5052550000 10105100000 20210200000