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211400210 = 2572431429
BaseRepresentation
bin11001001100110…
…11011000010010
3112201210020120102
430212123120102
5413104301320
632551012402
75144605100
oct1446333022
9481706512
10211400210
11a936a11a
125a96a102
1334a492a8
142010cc70
151385c175
hexc99b612

211400210 has 24 divisors (see below), whose sum is σ = 442647180. Its totient is φ = 72479904.

The previous prime is 211400183. The next prime is 211400237. The reversal of 211400210 is 12004112.

211400210 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (211400183) and next prime (211400237).

It can be written as a sum of positive squares in 2 ways, for example, as 211382521 + 17689 = 14539^2 + 133^2 .

It is a junction number, because it is equal to n+sod(n) for n = 211400191 and 211400200.

It is an unprimeable number.

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, 215225 + ... + 216204.

Almost surely, 2211400210 is an apocalyptic number.

211400210 is an abundant number, since it is smaller than the sum of its proper divisors (231246970).

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

211400210 is a wasteful number, since it uses less digits than its factorization.

211400210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 431450 (or 431443 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 211400210 is about 14539.6083165951. The cubic root of 211400210 is about 595.7103396295.

Adding to 211400210 its reverse (12004112), we get a palindrome (223404322).

The spelling of 211400210 in words is "two hundred eleven million, four hundred thousand, two hundred ten".

Divisors: 1 2 5 7 10 14 35 49 70 98 245 490 431429 862858 2157145 3020003 4314290 6040006 15100015 21140021 30200030 42280042 105700105 211400210