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7489303049 = 25729141257
BaseRepresentation
bin1101111100110010…
…11011001000001001
3201022221110000101102
412332121123020021
5110314230144144
63235053431145
7353410011524
oct67631331011
921287400342
107489303049
1131a3575258
12155019b4b5
139247b4187
14510929bbb
152dc76cb4e
hex1be65b209

7489303049 has 4 divisors (see below), whose sum is σ = 7518444564. Its totient is φ = 7460161536.

The previous prime is 7489303027. The next prime is 7489303067. The reversal of 7489303049 is 9403039847.

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 4969263049 + 2520040000 = 70493^2 + 50200^2 .

It is a cyclic number.

It is not a de Polignac number, because 7489303049 - 228 = 7220867593 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 7489302994 and 7489303012.

It is not an unprimeable number, because it can be changed into a prime (7489303649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14570372 + ... + 14570885.

It is an arithmetic number, because the mean of its divisors is an integer number (1879611141).

Almost surely, 27489303049 is an apocalyptic number.

It is an amenable number.

7489303049 is a deficient number, since it is larger than the sum of its proper divisors (29141515).

7489303049 is a wasteful number, since it uses less digits than its factorization.

7489303049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29141514.

The product of its (nonzero) digits is 653184, while the sum is 47.

The square root of 7489303049 is about 86540.7594662769. The cubic root of 7489303049 is about 1956.5027745321.

The spelling of 7489303049 in words is "seven billion, four hundred eighty-nine million, three hundred three thousand, forty-nine".

Divisors: 1 257 29141257 7489303049