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201211300 = 22522012113
BaseRepresentation
bin10111111111000…
…11110110100100
3112000121121000101
423333203312210
5403002230200
631544353444
74662160603
oct1377436644
9460547011
10201211300
11a3640034
1257475884
13328bc754
141ca19a3a
15129e826a
hexbfe3da4

201211300 has 18 divisors (see below), whose sum is σ = 436628738. Its totient is φ = 80484480.

The previous prime is 201211261. The next prime is 201211321. The reversal of 201211300 is 3112102.

It can be written as a sum of positive squares in 3 ways, for example, as 1893376 + 199317924 = 1376^2 + 14118^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1005957 + ... + 1006156.

Almost surely, 2201211300 is an apocalyptic number.

201211300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201211300 is an abundant number, since it is smaller than the sum of its proper divisors (235417438).

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

201211300 is a wasteful number, since it uses less digits than its factorization.

201211300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2012127 (or 2012120 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 10.

The square root of 201211300 is about 14184.8968977571. The cubic root of 201211300 is about 585.9817930487.

Adding to 201211300 its reverse (3112102), we get a palindrome (204323402).

The spelling of 201211300 in words is "two hundred one million, two hundred eleven thousand, three hundred".

Divisors: 1 2 4 5 10 20 25 50 100 2012113 4024226 8048452 10060565 20121130 40242260 50302825 100605650 201211300