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20210012200 = 2352714435723
BaseRepresentation
bin10010110100100111…
…000101000000101000
31221011110200222211101
4102310213011000220
5312342230342300
613141230411144
71313552161240
oct226447050050
957143628741
1020210012200
118631030324
123b00360ab4
131ba1059201
14d9a152b20
157d4401b6a
hex4b49c5028

20210012200 has 48 divisors (see below), whose sum is σ = 53700893280. Its totient is φ = 6929146560.

The previous prime is 20210012197. The next prime is 20210012201. The reversal of 20210012200 is 221001202.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is not an unprimeable number, because it can be changed into a prime (20210012201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7216462 + ... + 7219261.

It is an arithmetic number, because the mean of its divisors is an integer number (1118768610).

Almost surely, 220210012200 is an apocalyptic number.

20210012200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20210012200 is an abundant number, since it is smaller than the sum of its proper divisors (33490881080).

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

20210012200 is a wasteful number, since it uses less digits than its factorization.

20210012200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14435746 (or 14435737 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 10.

Adding to 20210012200 its reverse (221001202), we get a palindrome (20431013402).

The spelling of 20210012200 in words is "twenty billion, two hundred ten million, twelve thousand, two hundred".

Divisors: 1 2 4 5 7 8 10 14 20 25 28 35 40 50 56 70 100 140 175 200 280 350 700 1400 14435723 28871446 57742892 72178615 101050061 115485784 144357230 202100122 288714460 360893075 404200244 505250305 577428920 721786150 808400488 1010500610 1443572300 2021001220 2526251525 2887144600 4042002440 5052503050 10105006100 20210012200