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7028369 = 19735677
BaseRepresentation
bin11010110011111010010001
3111020002002222
4122303322101
53244401434
6410350425
7113511605
oct32637221
914202088
107028369
113a70577
12242b415
1315c10ca
14d0d505
1593c72e
hex6b3e91

7028369 has 4 divisors (see below), whose sum is σ = 7064244. Its totient is φ = 6992496.

The previous prime is 7028341. The next prime is 7028377. The reversal of 7028369 is 9638207.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 6150400 + 877969 = 2480^2 + 937^2 .

It is a cyclic number.

It is not a de Polignac number, because 7028369 - 212 = 7024273 is a prime.

It is a super-2 number, since 2×70283692 = 98795941600322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7028339) 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 in 3 ways as a sum of consecutive naturals, for example, 17642 + ... + 18035.

It is an arithmetic number, because the mean of its divisors is an integer number (1766061).

Almost surely, 27028369 is an apocalyptic number.

It is an amenable number.

7028369 is a deficient number, since it is larger than the sum of its proper divisors (35875).

7028369 is a wasteful number, since it uses less digits than its factorization.

7028369 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35874.

The product of its (nonzero) digits is 18144, while the sum is 35.

The square root of 7028369 is about 2651.1071272206. The cubic root of 7028369 is about 191.5511887464.

The spelling of 7028369 in words is "seven million, twenty-eight thousand, three hundred sixty-nine".

Divisors: 1 197 35677 7028369