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12115077 = 313310643
BaseRepresentation
bin101110001101…
…110010000101
3211210111202120
4232031302011
511100140302
61111400153
7204655632
oct56156205
924714676
1012115077
116925267
124083059
1326824b0
141875189
1510e49bc
hexb8dc85

12115077 has 8 divisors (see below), whose sum is σ = 17396064. Its totient is φ = 7455408.

The previous prime is 12115039. The next prime is 12115091. The reversal of 12115077 is 77051121.

It is a happy number.

12115077 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 12115077 - 26 = 12115013 is a prime.

It is a Smith number, since the sum of its digits (24) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12116077) 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, 155283 + ... + 155360.

It is an arithmetic number, because the mean of its divisors is an integer number (2174508).

Almost surely, 212115077 is an apocalyptic number.

It is an amenable number.

12115077 is a deficient number, since it is larger than the sum of its proper divisors (5280987).

12115077 is a wasteful number, since it uses less digits than its factorization.

12115077 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 310659.

The product of its (nonzero) digits is 490, while the sum is 24.

The square root of 12115077 is about 3480.6719178917. The cubic root of 12115077 is about 229.6723564175.

Adding to 12115077 its reverse (77051121), we get a palindrome (89166198).

The spelling of 12115077 in words is "twelve million, one hundred fifteen thousand, seventy-seven".

Divisors: 1 3 13 39 310643 931929 4038359 12115077