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12072107 = 32033769
BaseRepresentation
bin101110000011…
…010010101011
3211201022211002
4232003102223
511042301412
61110425215
7204416435
oct56032253
924638732
1012072107
1168a5a53
12406220b
132668a78
141863655
1510d6dc2
hexb834ab

12072107 has 4 divisors (see below), whose sum is σ = 12079080. Its totient is φ = 12065136.

The previous prime is 12072037. The next prime is 12072119. The reversal of 12072107 is 70127021.

12072107 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 70127021 = 151146411.

It is a cyclic number.

It is not a de Polignac number, because 12072107 - 210 = 12071083 is a prime.

It is a super-3 number, since 3×120721073 (a number of 22 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12072187) 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, 1319 + ... + 5087.

It is an arithmetic number, because the mean of its divisors is an integer number (3019770).

Almost surely, 212072107 is an apocalyptic number.

12072107 is a deficient number, since it is larger than the sum of its proper divisors (6973).

12072107 is an equidigital number, since it uses as much as digits as its factorization.

12072107 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6972.

The product of its (nonzero) digits is 196, while the sum is 20.

The square root of 12072107 is about 3474.4937760773. The cubic root of 12072107 is about 229.4004992354.

Adding to 12072107 its reverse (70127021), we get a palindrome (82199128).

It can be divided in two parts, 120 and 72107, that added together give a palindrome (72227).

The spelling of 12072107 in words is "twelve million, seventy-two thousand, one hundred seven".

Divisors: 1 3203 3769 12072107