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211190 = 2572431
BaseRepresentation
bin110011100011110110
3101201200212
4303203312
523224230
64305422
71536500
oct634366
9351625
10211190
11134741
12a2272
1375185
1456d70
1542895
hex338f6

211190 has 24 divisors (see below), whose sum is σ = 443232. Its totient is φ = 72240.

The previous prime is 211187. The next prime is 211193. The reversal of 211190 is 91112.

211190 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 (211187) and next prime (211193).

It is a super-2 number, since 2×2111902 = 89202432200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211193) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 275 + ... + 705.

It is an arithmetic number, because the mean of its divisors is an integer number (18468).

2211190 is an apocalyptic number.

211190 is an abundant number, since it is smaller than the sum of its proper divisors (232042).

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

211190 is a wasteful number, since it uses less digits than its factorization.

211190 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 452 (or 445 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 14.

The square root of 211190 is about 459.5541317408. The cubic root of 211190 is about 59.5512822008.

The spelling of 211190 in words is "two hundred eleven thousand, one hundred ninety".

Divisors: 1 2 5 7 10 14 35 49 70 98 245 431 490 862 2155 3017 4310 6034 15085 21119 30170 42238 105595 211190