Search a number
-
+
12219344300 = 2252294213567
BaseRepresentation
bin10110110000101010…
…00110010110101100
31011112120212000011102
423120111012112230
5200011123004200
65340302542232
7611543466332
oct133025062654
934476760142
1012219344300
115200557259
122450297978
1311c9732957
1483cbd7b52
154b7b4b6d5
hex2d85465ac

12219344300 has 36 divisors (see below), whose sum is σ = 27430327680. Its totient is φ = 4719193920.

The previous prime is 12219344279. The next prime is 12219344309. The reversal of 12219344300 is 344391221.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is not an unprimeable number, because it can be changed into a prime (12219344309) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2103884 + ... + 2109683.

Almost surely, 212219344300 is an apocalyptic number.

12219344300 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12219344300 is an abundant number, since it is smaller than the sum of its proper divisors (15210983380).

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

12219344300 is a wasteful number, since it uses less digits than its factorization.

12219344300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4213610 (or 4213603 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 29.

The spelling of 12219344300 in words is "twelve billion, two hundred nineteen million, three hundred forty-four thousand, three hundred".

Divisors: 1 2 4 5 10 20 25 29 50 58 100 116 145 290 580 725 1450 2900 4213567 8427134 16854268 21067835 42135670 84271340 105339175 122193443 210678350 244386886 421356700 488773772 610967215 1221934430 2443868860 3054836075 6109672150 12219344300