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12234430140 = 2235991205759
BaseRepresentation
bin10110110010011101…
…01001011010111100
31011120122020110001020
423121032221122330
5200024003231030
65342002144140
7612115640352
oct133116513274
934518213036
1012234430140
115209020499
122455352050
1311cc8b539a
14840c037d2
154b912b510
hex2d93a96bc

12234430140 has 48 divisors (see below), whose sum is σ = 34291138560. Its totient is φ = 3259206720.

The previous prime is 12234430097. The next prime is 12234430177. The reversal of 12234430140 is 4103443221.

It is a self number, because there is not a number n which added to its sum of digits gives 12234430140.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 43420 + ... + 162339.

It is an arithmetic number, because the mean of its divisors is an integer number (714398720).

Almost surely, 212234430140 is an apocalyptic number.

12234430140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12234430140 is an abundant number, since it is smaller than the sum of its proper divisors (22056708420).

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

12234430140 is a wasteful number, since it uses less digits than its factorization.

12234430140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206762 (or 206760 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 12234430140 its reverse (4103443221), we get a palindrome (16337873361).

The spelling of 12234430140 in words is "twelve billion, two hundred thirty-four million, four hundred thirty thousand, one hundred forty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 991 1982 2973 3964 4955 5946 9910 11892 14865 19820 29730 59460 205759 411518 617277 823036 1028795 1234554 2057590 2469108 3086385 4115180 6172770 12345540 203907169 407814338 611721507 815628676 1019535845 1223443014 2039071690 2446886028 3058607535 4078143380 6117215070 12234430140