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12223140140 = 2251394396813
BaseRepresentation
bin10110110001000111…
…00101000100101100
31011112211222212002002
423120203211010230
5200013110441030
65340520151432
7611620656041
oct133043450454
934484885062
1012223140140
11520270a112
122451608578
1311ca461603
1483d5051c8
154b814b245
hex2d88e512c

12223140140 has 24 divisors (see below), whose sum is σ = 25853266320. Its totient is φ = 4854080448.

The previous prime is 12223140067. The next prime is 12223140151. The reversal of 12223140140 is 4104132221.

It is a Harshad number since it is a multiple of its sum of digits (20).

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, 2195627 + ... + 2201186.

It is an arithmetic number, because the mean of its divisors is an integer number (1077219430).

Almost surely, 212223140140 is an apocalyptic number.

12223140140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12223140140 is an abundant number, since it is smaller than the sum of its proper divisors (13630126180).

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

12223140140 is a wasteful number, since it uses less digits than its factorization.

12223140140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4396961 (or 4396959 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 12223140140 its reverse (4104132221), we get a palindrome (16327272361).

The spelling of 12223140140 in words is "twelve billion, two hundred twenty-three million, one hundred forty thousand, one hundred forty".

Divisors: 1 2 4 5 10 20 139 278 556 695 1390 2780 4396813 8793626 17587252 21984065 43968130 87936260 611157007 1222314014 2444628028 3055785035 6111570070 12223140140