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8213235 = 352979239
BaseRepresentation
bin11111010101001011110011
3120110021102220
4133111023303
54100310420
6452012123
7126545202
oct37251363
916407386
108213235
1146aa7a8
122901043
131917504
14113b239
15ac3840
hex7d52f3

8213235 has 32 divisors (see below), whose sum is σ = 13824000. Its totient is φ = 4158336.

The previous prime is 8213221. The next prime is 8213267. The reversal of 8213235 is 5323128.

8213235 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 8213235 - 29 = 8212723 is a prime.

8213235 is a lucky number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 34246 + ... + 34484.

It is an arithmetic number, because the mean of its divisors is an integer number (432000).

Almost surely, 28213235 is an apocalyptic number.

8213235 is a deficient number, since it is larger than the sum of its proper divisors (5610765).

8213235 is a wasteful number, since it uses less digits than its factorization.

8213235 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 355.

The product of its digits is 1440, while the sum is 24.

The square root of 8213235 is about 2865.8742121733. The cubic root of 8213235 is about 201.7614001411.

It can be divided in two parts, 8213 and 235, that added together give a palindrome (8448).

The spelling of 8213235 in words is "eight million, two hundred thirteen thousand, two hundred thirty-five".

Divisors: 1 3 5 15 29 79 87 145 237 239 395 435 717 1185 1195 2291 3585 6873 6931 11455 18881 20793 34365 34655 56643 94405 103965 283215 547549 1642647 2737745 8213235