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12111007 = 471671543
BaseRepresentation
bin101110001100…
…110010011111
3211210022011211
4232030302133
511100023012
61111325251
7204641026
oct56146237
924708154
1012111007
1169221a7
124080827
13268069c
1418738bd
1510e36a7
hexb8cc9f

12111007 has 8 divisors (see below), whose sum is σ = 12450816. Its totient is φ = 11774712.

The previous prime is 12110971. The next prime is 12111017. The reversal of 12111007 is 70011121.

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 12111007 - 219 = 11586719 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12111017) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7078 + ... + 8620.

It is an arithmetic number, because the mean of its divisors is an integer number (1556352).

Almost surely, 212111007 is an apocalyptic number.

12111007 is a deficient number, since it is larger than the sum of its proper divisors (339809).

12111007 is a wasteful number, since it uses less digits than its factorization.

12111007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1757.

The product of its (nonzero) digits is 14, while the sum is 13.

The square root of 12111007 is about 3480.0872115509. The cubic root of 12111007 is about 229.6466344407.

Adding to 12111007 its reverse (70011121), we get a palindrome (82122128).

The spelling of 12111007 in words is "twelve million, one hundred eleven thousand, seven".

Divisors: 1 47 167 1543 7849 72521 257681 12111007