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12107738 = 289251271
BaseRepresentation
bin101110001011…
…111111011010
3211210010200202
4232023333122
511044421423
61111302202
7204625346
oct56137732
924703622
1012107738
11691a7a5
12407a962
13267c056
141872626
1510e2728
hexb8bfda

12107738 has 16 divisors (see below), whose sum is σ = 18506880. Its totient is φ = 5940000.

The previous prime is 12107737. The next prime is 12107741. The reversal of 12107738 is 83770121.

It is a self number, because there is not a number n which added to its sum of digits gives 12107738.

It is not an unprimeable number, because it can be changed into a prime (12107737) 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, 44543 + ... + 44813.

It is an arithmetic number, because the mean of its divisors is an integer number (1156680).

Almost surely, 212107738 is an apocalyptic number.

12107738 is a deficient number, since it is larger than the sum of its proper divisors (6399142).

12107738 is a wasteful number, since it uses less digits than its factorization.

12107738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 613.

The product of its (nonzero) digits is 2352, while the sum is 29.

The square root of 12107738 is about 3479.6175077155. The cubic root of 12107738 is about 229.6259705272.

Adding to 12107738 its reverse (83770121), we get a palindrome (95877859).

The spelling of 12107738 in words is "twelve million, one hundred seven thousand, seven hundred thirty-eight".

Divisors: 1 2 89 178 251 271 502 542 22339 24119 44678 48238 68021 136042 6053869 12107738