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12230143000 = 235315777899
BaseRepresentation
bin10110110001111100…
…10010110000011000
31011120100011122012021
423120332102300120
5200021404034000
65341330224224
7612034333405
oct133076226030
934510148167
1012230143000
1152066624a9
122453a25074
1311cba43c0a
148404092ac
154b8a8111a
hex2d8f92c18

12230143000 has 64 divisors (see below), whose sum is σ = 28801188000. Its totient is φ = 4860835200.

The previous prime is 12230142997. The next prime is 12230143007. The reversal of 12230143000 is 34103221.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12230143007) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 118051 + ... + 195949.

Almost surely, 212230143000 is an apocalyptic number.

12230143000 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 12230143000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14400594000).

12230143000 is an abundant number, since it is smaller than the sum of its proper divisors (16571045000).

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

12230143000 is a wasteful number, since it uses less digits than its factorization.

12230143000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78077 (or 78063 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 12230143000 its reverse (34103221), we get a palindrome (12264246221).

The spelling of 12230143000 in words is "twelve billion, two hundred thirty million, one hundred forty-three thousand".

Divisors: 1 2 4 5 8 10 20 25 40 50 100 125 157 200 250 314 500 628 785 1000 1256 1570 3140 3925 6280 7850 15700 19625 31400 39250 77899 78500 155798 157000 311596 389495 623192 778990 1557980 1947475 3115960 3894950 7789900 9737375 12230143 15579800 19474750 24460286 38949500 48920572 61150715 77899000 97841144 122301430 244602860 305753575 489205720 611507150 1223014300 1528767875 2446028600 3057535750 6115071500 12230143000