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12326830840 = 235308170771
BaseRepresentation
bin10110111101011110…
…01000001011111000
31011211002002212222101
423132233020023320
5200221132041330
65355102433144
7614320222222
oct133657101370
934732085871
1012326830840
1152561a1505
1224802927b4
131215a97c5c
1484d1b7412
154c22ce4ca
hex2debc82f8

12326830840 has 16 divisors (see below), whose sum is σ = 27735369480. Its totient is φ = 4930732320.

The previous prime is 12326830801. The next prime is 12326830847. The reversal of 12326830840 is 4803862321.

It is a self number, because there is not a number n which added to its sum of digits gives 12326830840.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12326830847) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 154085346 + ... + 154085425.

Almost surely, 212326830840 is an apocalyptic number.

12326830840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12326830840 is an abundant number, since it is smaller than the sum of its proper divisors (15408538640).

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

12326830840 is a wasteful number, since it uses less digits than its factorization.

12326830840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 308170782 (or 308170778 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 37.

The spelling of 12326830840 in words is "twelve billion, three hundred twenty-six million, eight hundred thirty thousand, eight hundred forty".

Divisors: 1 2 4 5 8 10 20 40 308170771 616341542 1232683084 1540853855 2465366168 3081707710 6163415420 12326830840