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12018950 = 252240379
BaseRepresentation
bin101101110110…
…010100000110
3211121121220022
4231312110012
511034101300
61105335142
7204105446
oct55662406
924547808
1012018950
11686a019
1240374b2
13264a808
14184c126
1510c6285
hexb76506

12018950 has 12 divisors (see below), whose sum is σ = 22355340. Its totient is φ = 4807560.

The previous prime is 12018931. The next prime is 12018953. The reversal of 12018950 is 5981021.

It is a happy number.

12018950 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12018953) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 120140 + ... + 120239.

It is an arithmetic number, because the mean of its divisors is an integer number (1862945).

Almost surely, 212018950 is an apocalyptic number.

12018950 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12018950 is a deficient number, since it is larger than the sum of its proper divisors (10336390).

12018950 is a wasteful number, since it uses less digits than its factorization.

12018950 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 240391 (or 240386 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 26.

The square root of 12018950 is about 3466.8357330569. The cubic root of 12018950 is about 229.0632981012.

Adding to 12018950 its reverse (5981021), we get a palindrome (17999971).

The spelling of 12018950 in words is "twelve million, eighteen thousand, nine hundred fifty".

Divisors: 1 2 5 10 25 50 240379 480758 1201895 2403790 6009475 12018950