Search a number
-
+
8133212 = 223895227
BaseRepresentation
bin11111000001101001011100
3120022012200002
4133001221130
54040230322
6450153432
7126062663
oct37015134
916265602
108133212
11465566a
122882878
1318b9c69
141119dda
15aa9c92
hex7c1a5c

8133212 has 12 divisors (see below), whose sum is σ = 14272440. Its totient is φ = 4055376.

The previous prime is 8133199. The next prime is 8133233. The reversal of 8133212 is 2123318.

It is a super-2 number, since 2×81332122 = 132298274873888, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1058 + ... + 4169.

It is an arithmetic number, because the mean of its divisors is an integer number (1189370).

Almost surely, 28133212 is an apocalyptic number.

It is an amenable number.

8133212 is a deficient number, since it is larger than the sum of its proper divisors (6139228).

8133212 is a wasteful number, since it uses less digits than its factorization.

8133212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5620 (or 5618 counting only the distinct ones).

The product of its digits is 288, while the sum is 20.

The square root of 8133212 is about 2851.8786790465. The cubic root of 8133212 is about 201.1039947648.

The spelling of 8133212 in words is "eight million, one hundred thirty-three thousand, two hundred twelve".

Divisors: 1 2 4 389 778 1556 5227 10454 20908 2033303 4066606 8133212