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2150213 = 13193857
BaseRepresentation
bin1000001100111101000101
311001020112112
420030331011
51022301323
6114030405
724163562
oct10147505
94036475
102150213
11123953a
12878405
135a3920
143dd869
152c7178
hex20cf45

2150213 has 8 divisors (see below), whose sum is σ = 2330328. Its totient is φ = 1972224.

The previous prime is 2150209. The next prime is 2150221. The reversal of 2150213 is 3120512.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 209764 + 1940449 = 458^2 + 1393^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2150213 - 22 = 2150209 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2150273) 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, 2081 + ... + 2937.

It is an arithmetic number, because the mean of its divisors is an integer number (291291).

22150213 is an apocalyptic number.

It is an amenable number.

2150213 is a deficient number, since it is larger than the sum of its proper divisors (180115).

2150213 is a wasteful number, since it uses less digits than its factorization.

2150213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1063.

The product of its (nonzero) digits is 60, while the sum is 14.

The square root of 2150213 is about 1466.3604604598. The cubic root of 2150213 is about 129.0705501157.

Adding to 2150213 its reverse (3120512), we get a palindrome (5270725).

Subtracting 2150213 from its reverse (3120512), we obtain a cube (970299 = 993).

The spelling of 2150213 in words is "two million, one hundred fifty thousand, two hundred thirteen".

Divisors: 1 13 193 857 2509 11141 165401 2150213