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12090698789 = 131019208453
BaseRepresentation
bin10110100001010100…
…10110110000100101
31011012121210010200212
423100222112300211
5144230204330124
65315425345205
7605422146461
oct132052266045
934177703625
1012090698789
11514497aa54
122415198205
1311a8b9c850
14829aab4a1
154ab6d940e
hex2d0a96c25

12090698789 has 8 divisors (see below), whose sum is σ = 13149672312. Its totient is φ = 11050142400.

The previous prime is 12090698783. The next prime is 12090698801. The reversal of 12090698789 is 98789609021.

It can be written as a sum of positive squares in 4 ways, for example, as 153388225 + 11937310564 = 12385^2 + 109258^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-12090698789 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12090698783) 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, 4602914 + ... + 4605539.

It is an arithmetic number, because the mean of its divisors is an integer number (1643709039).

Almost surely, 212090698789 is an apocalyptic number.

It is an amenable number.

12090698789 is a deficient number, since it is larger than the sum of its proper divisors (1058973523).

12090698789 is a wasteful number, since it uses less digits than its factorization.

12090698789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9208567.

The product of its (nonzero) digits is 3919104, while the sum is 59.

The spelling of 12090698789 in words is "twelve billion, ninety million, six hundred ninety-eight thousand, seven hundred eighty-nine".

Divisors: 1 13 101 1313 9208453 119709889 930053753 12090698789