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7668111 = 311232367
BaseRepresentation
bin11101010000000110001111
3112102120200010
4131100012033
53430334421
6432204303
7122115003
oct35200617
915376603
107668111
114368190
122699693
131786359
141038703
15a17076
hex75018f

7668111 has 8 divisors (see below), whose sum is σ = 11153664. Its totient is φ = 4647320.

The previous prime is 7668091. The next prime is 7668113. The reversal of 7668111 is 1118667.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 7668111 - 25 = 7668079 is a prime.

7668111 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7668113) 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 7 ways as a sum of consecutive naturals, for example, 116151 + ... + 116216.

It is an arithmetic number, because the mean of its divisors is an integer number (1394208).

Almost surely, 27668111 is an apocalyptic number.

7668111 is a deficient number, since it is larger than the sum of its proper divisors (3485553).

7668111 is a wasteful number, since it uses less digits than its factorization.

7668111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 232381.

The product of its digits is 2016, while the sum is 30.

The square root of 7668111 is about 2769.1354246407. The cubic root of 7668111 is about 197.1951050493.

The spelling of 7668111 in words is "seven million, six hundred sixty-eight thousand, one hundred eleven".

Divisors: 1 3 11 33 232367 697101 2556037 7668111