Search a number
-
+
7117149 = 313414451
BaseRepresentation
bin11011001001100101011101
3111101120220010
4123021211131
53310222044
6412313433
7114331464
oct33114535
914346803
107117149
114021246
122472879
131622640
14d339db
15958bb9
hex6c995d

7117149 has 16 divisors (see below), whose sum is σ = 10471104. Its totient is φ = 4272000.

The previous prime is 7117147. The next prime is 7117171. The reversal of 7117149 is 9417117.

It is not a de Polignac number, because 7117149 - 21 = 7117147 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7117141) 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 15 ways as a sum of consecutive naturals, for example, 627 + ... + 3824.

It is an arithmetic number, because the mean of its divisors is an integer number (654444).

Almost surely, 27117149 is an apocalyptic number.

It is an amenable number.

7117149 is a deficient number, since it is larger than the sum of its proper divisors (3353955).

7117149 is a wasteful number, since it uses less digits than its factorization.

7117149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4508.

The product of its digits is 1764, while the sum is 30.

The square root of 7117149 is about 2667.7985306241. The cubic root of 7117149 is about 192.3543532026.

Subtracting 7117149 from its reverse (9417117), we obtain a cube (2299968 = 1323).

The spelling of 7117149 in words is "seven million, one hundred seventeen thousand, one hundred forty-nine".

Divisors: 1 3 13 39 41 123 533 1599 4451 13353 57863 173589 182491 547473 2372383 7117149