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12007345 = 57349983
BaseRepresentation
bin101101110011…
…011110110001
3211121000222111
4231303132301
511033213340
61105205321
7204026560
oct55633661
924530874
1012007345
116861329
124030841
13264544c
141847bd7
1510c2aea
hexb737b1

12007345 has 16 divisors (see below), whose sum is σ = 16531200. Its totient is φ = 8201664.

The previous prime is 12007327. The next prime is 12007349. The reversal of 12007345 is 54370021.

It is a cyclic number.

It is not a de Polignac number, because 12007345 - 25 = 12007313 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12007349) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11724 + ... + 12706.

It is an arithmetic number, because the mean of its divisors is an integer number (1033200).

Almost surely, 212007345 is an apocalyptic number.

It is an amenable number.

12007345 is a deficient number, since it is larger than the sum of its proper divisors (4523855).

12007345 is an equidigital number, since it uses as much as digits as its factorization.

12007345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1344.

The product of its (nonzero) digits is 840, while the sum is 22.

The square root of 12007345 is about 3465.1616123927. The cubic root of 12007345 is about 228.9895496842.

Adding to 12007345 its reverse (54370021), we get a palindrome (66377366).

The spelling of 12007345 in words is "twelve million, seven thousand, three hundred forty-five".

Divisors: 1 5 7 35 349 983 1745 2443 4915 6881 12215 34405 343067 1715335 2401469 12007345