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211000 = 2353211
BaseRepresentation
bin110011100000111000
3101201102211
4303200320
523223000
64304504
71536106
oct634070
9351384
10211000
11134589
12a2134
137506a
1456c76
15427ba
hex33838

211000 has 32 divisors (see below), whose sum is σ = 496080. Its totient is φ = 84000.

The previous prime is 210967. The next prime is 211007. The reversal of 211000 is 112.

It is a Harshad number since it is a multiple of its sum of digits (4).

It is a plaindrome in base 11.

It is a nialpdrome in base 10.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211007) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 895 + ... + 1105.

2211000 is an apocalyptic number.

211000 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 211000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (248040).

211000 is an abundant number, since it is smaller than the sum of its proper divisors (285080).

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

211000 is a wasteful number, since it uses less digits than its factorization.

211000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 232 (or 218 counting only the distinct ones).

The product of its (nonzero) digits is 2, while the sum is 4.

The square root of 211000 is about 459.3473631142. The cubic root of 211000 is about 59.5334181314.

Adding to 211000 its reverse (112), we get a palindrome (211112).

The spelling of 211000 in words is "two hundred eleven thousand", and thus it is an iban number.

Divisors: 1 2 4 5 8 10 20 25 40 50 100 125 200 211 250 422 500 844 1000 1055 1688 2110 4220 5275 8440 10550 21100 26375 42200 52750 105500 211000