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211489013 = 6128312251
BaseRepresentation
bin11001001101100…
…01000011110101
3112201221202101102
430212301003311
5413120122023
632552535445
75145425021
oct1446610365
9481852342
10211489013
11a941a90a
125a9b1585
1334a7a838
1420133381
1513878628
hexc9b10f5

211489013 has 8 divisors (see below), whose sum is σ = 215733216. Its totient is φ = 207270000.

The previous prime is 211488997. The next prime is 211489021. The reversal of 211489013 is 310984112.

211489013 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 211489013 - 24 = 211488997 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211482013) 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, 11138 + ... + 23388.

It is an arithmetic number, because the mean of its divisors is an integer number (26966652).

Almost surely, 2211489013 is an apocalyptic number.

It is an amenable number.

211489013 is a deficient number, since it is larger than the sum of its proper divisors (4244203).

211489013 is a wasteful number, since it uses less digits than its factorization.

211489013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12595.

The product of its (nonzero) digits is 1728, while the sum is 29.

The square root of 211489013 is about 14542.6618265021. The cubic root of 211489013 is about 595.7937414067.

The spelling of 211489013 in words is "two hundred eleven million, four hundred eighty-nine thousand, thirteen".

Divisors: 1 61 283 12251 17263 747311 3467033 211489013