Search a number
-
+
7140789 = 321941759
BaseRepresentation
bin11011001111010110110101
3111102210022200
4123033112311
53312001124
6413015113
7114460425
oct33172665
914383280
107140789
114037a87
122484499
131630326
14d3c485
15960bc9
hex6cf5b5

7140789 has 12 divisors (see below), whose sum is σ = 10857600. Its totient is φ = 4509864.

The previous prime is 7140779. The next prime is 7140797. The reversal of 7140789 is 9870417.

7140789 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 7140789 - 29 = 7140277 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7140769) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20709 + ... + 21050.

It is an arithmetic number, because the mean of its divisors is an integer number (904800).

Almost surely, 27140789 is an apocalyptic number.

It is an amenable number.

7140789 is a deficient number, since it is larger than the sum of its proper divisors (3716811).

7140789 is a wasteful number, since it uses less digits than its factorization.

7140789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41784 (or 41781 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 36.

The square root of 7140789 is about 2672.2254770135. The cubic root of 7140789 is about 192.5670896754.

The spelling of 7140789 in words is "seven million, one hundred forty thousand, seven hundred eighty-nine".

Divisors: 1 3 9 19 57 171 41759 125277 375831 793421 2380263 7140789