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7030249 = 23305663
BaseRepresentation
bin11010110100010111101001
3111020011200121
4122310113221
53244431444
6410403241
7113520232
oct32642751
914204617
107030249
113a71a26
122430521
1315c1c15
14d10089
1593d084
hex6b45e9

7030249 has 4 divisors (see below), whose sum is σ = 7335936. Its totient is φ = 6724564.

The previous prime is 7030237. The next prime is 7030313. The reversal of 7030249 is 9420307.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 9420307 = 13724639.

It is a cyclic number.

It is not a de Polignac number, because 7030249 - 25 = 7030217 is a prime.

It is a Duffinian number.

7030249 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (7030549) 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, 152809 + ... + 152854.

It is an arithmetic number, because the mean of its divisors is an integer number (1833984).

Almost surely, 27030249 is an apocalyptic number.

It is an amenable number.

7030249 is a deficient number, since it is larger than the sum of its proper divisors (305687).

7030249 is a wasteful number, since it uses less digits than its factorization.

7030249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 305686.

The product of its (nonzero) digits is 1512, while the sum is 25.

The square root of 7030249 is about 2651.4616723611. The cubic root of 7030249 is about 191.5682663989.

The spelling of 7030249 in words is "seven million, thirty thousand, two hundred forty-nine".

Divisors: 1 23 305663 7030249