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7139011 = 11649001
BaseRepresentation
bin11011001110111011000011
3111102200212211
4123032323003
53311422021
6413002551
7114452305
oct33167303
914380784
107139011
114036710
122483457
13162c589
14d3b975
159603e1
hex6ceec3

7139011 has 4 divisors (see below), whose sum is σ = 7788024. Its totient is φ = 6490000.

The previous prime is 7139009. The next prime is 7139023. The reversal of 7139011 is 1109317.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1109317 = 11100847.

It is not a de Polignac number, because 7139011 - 21 = 7139009 is a prime.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7139071) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 324490 + ... + 324511.

It is an arithmetic number, because the mean of its divisors is an integer number (1947006).

Almost surely, 27139011 is an apocalyptic number.

7139011 is a deficient number, since it is larger than the sum of its proper divisors (649013).

7139011 is a wasteful number, since it uses less digits than its factorization.

7139011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 649012.

The product of its (nonzero) digits is 189, while the sum is 22.

The square root of 7139011 is about 2671.8927747947. The cubic root of 7139011 is about 192.5511057878.

The spelling of 7139011 in words is "seven million, one hundred thirty-nine thousand, eleven".

Divisors: 1 11 649001 7139011