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12230031120 = 243589572567
BaseRepresentation
bin10110110001111011…
…10111011100010000
31011120022221221201120
423120331313130100
5200021341443440
65341324002240
7612033356256
oct133075673420
934508857646
1012230031120
11520659643a
122453990380
1311cba05008
148403ba5d6
154b8a5cdd0
hex2d8f77710

12230031120 has 80 divisors (see below), whose sum is σ = 38339153280. Its totient is φ = 3224691712.

The previous prime is 12230031113. The next prime is 12230031133. The reversal of 12230031120 is 2113003221.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×122300311202 (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 12230031120.

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, 264924 + ... + 307643.

It is an arithmetic number, because the mean of its divisors is an integer number (479239416).

Almost surely, 212230031120 is an apocalyptic number.

12230031120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12230031120 is an abundant number, since it is smaller than the sum of its proper divisors (26109122160).

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

12230031120 is a wasteful number, since it uses less digits than its factorization.

12230031120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 572672 (or 572666 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 12230031120 its reverse (2113003221), we get a palindrome (14343034341).

The spelling of 12230031120 in words is "twelve billion, two hundred thirty million, thirty-one thousand, one hundred twenty".

Divisors: 1 2 3 4 5 6 8 10 12 15 16 20 24 30 40 48 60 80 89 120 178 240 267 356 445 534 712 890 1068 1335 1424 1780 2136 2670 3560 4272 5340 7120 10680 21360 572567 1145134 1717701 2290268 2862835 3435402 4580536 5725670 6870804 8588505 9161072 11451340 13741608 17177010 22902680 27483216 34354020 45805360 50958463 68708040 101916926 137416080 152875389 203833852 254792315 305750778 407667704 509584630 611501556 764376945 815335408 1019169260 1223003112 1528753890 2038338520 2446006224 3057507780 4076677040 6115015560 12230031120