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12031230330 = 2325720639257
BaseRepresentation
bin10110011010001111…
…00000000101111010
31011001110212211022100
423031013200011322
5144114443332310
65305503004230
7604100525160
oct131507400572
934043784270
1012031230330
115114352469
1223b9299676
13119977a802
14821c2b230
154a638dec0
hex2cd1e017a

12031230330 has 96 divisors (see below), whose sum is σ = 35771134464. Its totient is φ = 2748365568.

The previous prime is 12031230313. The next prime is 12031230359. The reversal of 12031230330 is 3303213021.

12031230330 is a `hidden beast` number, since 1 + 20 + 312 + 3 + 0 + 330 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1295062 + ... + 1304318.

It is an arithmetic number, because the mean of its divisors is an integer number (372615984).

Almost surely, 212031230330 is an apocalyptic number.

12031230330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12031230330 is an abundant number, since it is smaller than the sum of its proper divisors (23739904134).

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

12031230330 is a wasteful number, since it uses less digits than its factorization.

12031230330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11340 (or 11337 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 18.

Adding to 12031230330 its reverse (3303213021), we get a palindrome (15334443351).

The spelling of 12031230330 in words is "twelve billion, thirty-one million, two hundred thirty thousand, three hundred thirty".

Divisors: 1 2 3 5 6 7 9 10 14 15 18 21 30 35 42 45 63 70 90 105 126 210 315 630 2063 4126 6189 9257 10315 12378 14441 18514 18567 20630 27771 28882 30945 37134 43323 46285 55542 61890 64799 72205 83313 86646 92570 92835 129598 129969 138855 144410 166626 185670 194397 216615 259938 277710 323995 388794 416565 433230 583191 647990 649845 833130 971985 1166382 1299690 1943970 2915955 5831910 19097191 38194382 57291573 95485955 114583146 133680337 171874719 190971910 267360674 286457865 343749438 401041011 572915730 668401685 802082022 859373595 1203123033 1336803370 1718747190 2005205055 2406246066 4010410110 6015615165 12031230330