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2213821149 = 3859985817
BaseRepresentation
bin1000001111110100…
…0011101011011101
312201021200202200220
42003331003223131
514013214234044
61003401511553
7105601112031
oct20375035335
95637622626
102213821149
11a3670a661
125194a25b9
13293860557
141700381c1
15ce54c019
hex83f43add

2213821149 has 8 divisors (see below), whose sum is σ = 2952139200. Its totient is φ = 1475691936.

The previous prime is 2213821133. The next prime is 2213821153. The reversal of 2213821149 is 9411283122.

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

It is not a de Polignac number, because 2213821149 - 24 = 2213821133 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2213821189) 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, 17112 + ... + 68705.

It is an arithmetic number, because the mean of its divisors is an integer number (369017400).

Almost surely, 22213821149 is an apocalyptic number.

It is an amenable number.

2213821149 is a deficient number, since it is larger than the sum of its proper divisors (738318051).

2213821149 is an equidigital number, since it uses as much as digits as its factorization.

2213821149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94419.

The product of its digits is 6912, while the sum is 33.

The square root of 2213821149 is about 47051.2608651458. The cubic root of 2213821149 is about 1303.3093492635.

The spelling of 2213821149 in words is "two billion, two hundred thirteen million, eight hundred twenty-one thousand, one hundred forty-nine".

Divisors: 1 3 8599 25797 85817 257451 737940383 2213821149