Search a number
-
+
7425084857 = 12795805383
BaseRepresentation
bin1101110101001000…
…11100110110111001
3201011110121101120212
412322210130312321
5110201310203412
63224441200505
7352000115501
oct67244346671
921143541525
107425084857
1131702a3173
121532790135
139143bb248
145061b0a01
152d6cd5222
hex1ba91cdb9

7425084857 has 4 divisors (see below), whose sum is σ = 7430891520. Its totient is φ = 7419278196.

The previous prime is 7425084839. The next prime is 7425084889. The reversal of 7425084857 is 7584805247.

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.

It is a cyclic number.

It is not a de Polignac number, because 7425084857 - 210 = 7425083833 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7425084757) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2901413 + ... + 2903970.

It is an arithmetic number, because the mean of its divisors is an integer number (1857722880).

Almost surely, 27425084857 is an apocalyptic number.

It is an amenable number.

7425084857 is a deficient number, since it is larger than the sum of its proper divisors (5806663).

7425084857 is a wasteful number, since it uses less digits than its factorization.

7425084857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5806662.

The product of its (nonzero) digits is 2508800, while the sum is 50.

The square root of 7425084857 is about 86168.9320869187. The cubic root of 7425084857 is about 1950.8946021874.

The spelling of 7425084857 in words is "seven billion, four hundred twenty-five million, eighty-four thousand, eight hundred fifty-seven".

Divisors: 1 1279 5805383 7425084857