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2213493 = 33123801
BaseRepresentation
bin1000011100011001110101
311011110100020
420130121311
51031312433
6115235353
724546222
oct10343165
94143306
102213493
111282037
128a8b59
135c6679
14418949
152dacb3
hex21c675

2213493 has 8 divisors (see below), whose sum is σ = 3046656. Its totient is φ = 1428000.

The previous prime is 2213489. The next prime is 2213531. The reversal of 2213493 is 3943122.

2213493 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 not a de Polignac number, because 2213493 - 22 = 2213489 is a prime.

It is a super-2 number, since 2×22134932 = 9799102522098, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2213413) 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 7 ways as a sum of consecutive naturals, for example, 11808 + ... + 11993.

It is an arithmetic number, because the mean of its divisors is an integer number (380832).

22213493 is an apocalyptic number.

It is an amenable number.

2213493 is a deficient number, since it is larger than the sum of its proper divisors (833163).

2213493 is a wasteful number, since it uses less digits than its factorization.

2213493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23835.

The product of its digits is 1296, while the sum is 24.

The square root of 2213493 is about 1487.7812339185. The cubic root of 2213493 is about 130.3244950687.

The spelling of 2213493 in words is "two million, two hundred thirteen thousand, four hundred ninety-three".

Divisors: 1 3 31 93 23801 71403 737831 2213493