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7028132 = 221757033
BaseRepresentation
bin11010110011110110100100
3111020001210012
4122303312210
53244400012
6410345352
7113511116
oct32636644
914201705
107028132
113a70381
12242b258
1315c0c77
14d0d3b6
1593c622
hex6b3da4

7028132 has 6 divisors (see below), whose sum is σ = 12299238. Its totient is φ = 3514064.

The previous prime is 7028111. The next prime is 7028137. The reversal of 7028132 is 2318207.

It can be written as a sum of positive squares in only one way, i.e., 5134756 + 1893376 = 2266^2 + 1376^2 .

It is a junction number, because it is equal to n+sod(n) for n = 7028098 and 7028107.

It is not an unprimeable number, because it can be changed into a prime (7028137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 878513 + ... + 878520.

It is an arithmetic number, because the mean of its divisors is an integer number (2049873).

Almost surely, 27028132 is an apocalyptic number.

It is an amenable number.

7028132 is a deficient number, since it is larger than the sum of its proper divisors (5271106).

7028132 is a wasteful number, since it uses less digits than its factorization.

7028132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1757037 (or 1757035 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 23.

The square root of 7028132 is about 2651.0624285369. The cubic root of 7028132 is about 191.5490356559.

The spelling of 7028132 in words is "seven million, twenty-eight thousand, one hundred thirty-two".

Divisors: 1 2 4 1757033 3514066 7028132