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12115030 = 251211503
BaseRepresentation
bin101110001101…
…110001010110
3211210111200211
4232031301112
511100140110
61111400034
7204655534
oct56156126
924714624
1012115030
116925224
12408301a
132682475
141875154
1510e498a
hexb8dc56

12115030 has 8 divisors (see below), whose sum is σ = 21807072. Its totient is φ = 4846008.

The previous prime is 12115013. The next prime is 12115031. The reversal of 12115030 is 3051121.

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 12115030.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12115031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 605742 + ... + 605761.

It is an arithmetic number, because the mean of its divisors is an integer number (2725884).

Almost surely, 212115030 is an apocalyptic number.

12115030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12115030 is a deficient number, since it is larger than the sum of its proper divisors (9692042).

12115030 is a wasteful number, since it uses less digits than its factorization.

12115030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1211510.

The product of its (nonzero) digits is 30, while the sum is 13.

The square root of 12115030 is about 3480.6651663152. The cubic root of 12115030 is about 229.6720594152.

Adding to 12115030 its reverse (3051121), we get a palindrome (15166151).

It can be divided in two parts, 1211 and 5030, that added together give a square (6241 = 792).

The spelling of 12115030 in words is "twelve million, one hundred fifteen thousand, thirty".

Divisors: 1 2 5 10 1211503 2423006 6057515 12115030