Search a number
-
+
8213933 = 71390263
BaseRepresentation
bin11111010101010110101101
3120110022101202
4133111112231
54100321213
6452015245
7126550220
oct37252655
916408352
108213933
114700282
122901525
131917920
14113b5b7
15ac3b58
hex7d55ad

8213933 has 8 divisors (see below), whose sum is σ = 10109568. Its totient is φ = 6498864.

The previous prime is 8213897. The next prime is 8213951. The reversal of 8213933 is 3393128.

8213933 is digitally balanced in base 3, 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 8213933 - 26 = 8213869 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 8213896 and 8213905.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8213983) 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, 45041 + ... + 45222.

It is an arithmetic number, because the mean of its divisors is an integer number (1263696).

Almost surely, 28213933 is an apocalyptic number.

It is an amenable number.

8213933 is a deficient number, since it is larger than the sum of its proper divisors (1895635).

8213933 is a wasteful number, since it uses less digits than its factorization.

8213933 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90283.

The product of its digits is 3888, while the sum is 29.

The square root of 8213933 is about 2865.9959874361. The cubic root of 8213933 is about 201.7671155288.

The spelling of 8213933 in words is "eight million, two hundred thirteen thousand, nine hundred thirty-three".

Divisors: 1 7 13 91 90263 631841 1173419 8213933