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12790038 = 237329201
BaseRepresentation
bin110000110010…
…100100010110
3220001210122010
4300302210112
511233240123
61134045050
7213466512
oct60624426
926053563
1012790038
117246388
124349786
13285a791
1419ad142
1511c9993
hexc32916

12790038 has 16 divisors (see below), whose sum is σ = 25931376. Its totient is φ = 4204800.

The previous prime is 12790027. The next prime is 12790039. The reversal of 12790038 is 83009721.

It is a happy number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 12789987 and 12790014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12790039) 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, 14163 + ... + 15038.

It is an arithmetic number, because the mean of its divisors is an integer number (1620711).

Almost surely, 212790038 is an apocalyptic number.

12790038 is an abundant number, since it is smaller than the sum of its proper divisors (13141338).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12790038 is a wasteful number, since it uses less digits than its factorization.

12790038 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29279.

The product of its (nonzero) digits is 3024, while the sum is 30.

The square root of 12790038 is about 3576.3162611827. The cubic root of 12790038 is about 233.8607177553.

Adding to 12790038 its reverse (83009721), we get a palindrome (95799759).

The spelling of 12790038 in words is "twelve million, seven hundred ninety thousand, thirty-eight".

Divisors: 1 2 3 6 73 146 219 438 29201 58402 87603 175206 2131673 4263346 6395019 12790038