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7111994 = 211331469
BaseRepresentation
bin11011001000010100111010
3111101022211012
4123020110322
53310040434
6412233522
7114310451
oct33102472
914338735
107111994
11401838a
12246b8a2
1316201a6
14d31b98
159573ce
hex6c853a

7111994 has 8 divisors (see below), whose sum is σ = 10762740. Its totient is φ = 3524416.

The previous prime is 7111987. The next prime is 7111997. The reversal of 7111994 is 4991117.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 6325225 + 786769 = 2515^2 + 887^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 7111994.

It is not an unprimeable number, because it can be changed into a prime (7111997) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15509 + ... + 15960.

Almost surely, 27111994 is an apocalyptic number.

7111994 is a deficient number, since it is larger than the sum of its proper divisors (3650746).

7111994 is a wasteful number, since it uses less digits than its factorization.

7111994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31584.

The product of its digits is 2268, while the sum is 32.

The square root of 7111994 is about 2666.8322031954. The cubic root of 7111994 is about 192.3079007916.

The spelling of 7111994 in words is "seven million, one hundred eleven thousand, nine hundred ninety-four".

Divisors: 1 2 113 226 31469 62938 3555997 7111994