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12106749 = 37615303
BaseRepresentation
bin101110001011…
…101111111101
3211210002100010
4232023233331
511044403444
61111253433
7204622434
oct56135775
924702303
1012106749
116919a86
12407a279
13267b775
14187211b
1510e22b9
hexb8bbfd

12106749 has 8 divisors (see below), whose sum is σ = 16166592. Its totient is φ = 8059040.

The previous prime is 12106711. The next prime is 12106789. The reversal of 12106749 is 94760121.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12106749 - 27 = 12106621 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12106789) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 369 + ... + 4934.

It is an arithmetic number, because the mean of its divisors is an integer number (2020824).

Almost surely, 212106749 is an apocalyptic number.

It is an amenable number.

12106749 is a deficient number, since it is larger than the sum of its proper divisors (4059843).

12106749 is an equidigital number, since it uses as much as digits as its factorization.

12106749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6067.

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

The square root of 12106749 is about 3479.4753914922. The cubic root of 12106749 is about 229.6197181546.

The spelling of 12106749 in words is "twelve million, one hundred six thousand, seven hundred forty-nine".

Divisors: 1 3 761 2283 5303 15909 4035583 12106749