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12104720 = 245831823
BaseRepresentation
bin101110001011…
…010000010000
3211202222112222
4232023100100
511044322340
61111240212
7204613505
oct56132020
924688488
1012104720
116918501
124079068
13267a874
1418714ac
1510e18b5
hexb8b410

12104720 has 40 divisors (see below), whose sum is σ = 28498176. Its totient is φ = 4780928.

The previous prime is 12104713. The next prime is 12104753. The reversal of 12104720 is 2740121.

It is a tau number, because it is divible by the number of its divisors (40).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5729 + ... + 7551.

Almost surely, 212104720 is an apocalyptic number.

12104720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12104720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14249088).

12104720 is an abundant number, since it is smaller than the sum of its proper divisors (16393456).

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

12104720 is a wasteful number, since it uses less digits than its factorization.

12104720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1919 (or 1913 counting only the distinct ones).

The product of its (nonzero) digits is 112, while the sum is 17.

The square root of 12104720 is about 3479.1838123330. The cubic root of 12104720 is about 229.6068899259.

Adding to 12104720 its reverse (2740121), we get a palindrome (14844841).

The spelling of 12104720 in words is "twelve million, one hundred four thousand, seven hundred twenty".

Divisors: 1 2 4 5 8 10 16 20 40 80 83 166 332 415 664 830 1328 1660 1823 3320 3646 6640 7292 9115 14584 18230 29168 36460 72920 145840 151309 302618 605236 756545 1210472 1513090 2420944 3026180 6052360 12104720