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12112538 = 219318751
BaseRepresentation
bin101110001101…
…001010011010
3211210101021112
4232031022122
511100100123
61111340322
7204645344
oct56151232
924711245
1012112538
116923369
1240816a2
1326812a9
141874294
1510e3d78
hexb8d29a

12112538 has 8 divisors (see below), whose sum is σ = 19125120. Its totient is φ = 5737500.

The previous prime is 12112531. The next prime is 12112549. The reversal of 12112538 is 83521121.

It is a happy number.

12112538 is digitally balanced in base 2, because in such base 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 an unprimeable number, because it can be changed into a prime (12112531) 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, 159338 + ... + 159413.

It is an arithmetic number, because the mean of its divisors is an integer number (2390640).

Almost surely, 212112538 is an apocalyptic number.

12112538 is a deficient number, since it is larger than the sum of its proper divisors (7012582).

12112538 is a wasteful number, since it uses less digits than its factorization.

12112538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 318772.

The product of its digits is 480, while the sum is 23.

The square root of 12112538 is about 3480.3071703515. The cubic root of 12112538 is about 229.6563108776.

Adding to 12112538 its reverse (83521121), we get a palindrome (95633659).

The spelling of 12112538 in words is "twelve million, one hundred twelve thousand, five hundred thirty-eight".

Divisors: 1 2 19 38 318751 637502 6056269 12112538