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12303012030 = 23517109221317
BaseRepresentation
bin10110111010101000…
…10001000010111110
31011202102021202201020
423131110101002332
5200144032341110
65352452125010
7613610606511
oct133524210276
934672252636
1012303012030
115243803041
122474306766
131210b7859a
14849d76d78
154c0176d70
hex2dd5110be

12303012030 has 64 divisors (see below), whose sum is σ = 31551094080. Its totient is φ = 3059472384.

The previous prime is 12303011999. The next prime is 12303012049. The reversal of 12303012030 is 3021030321.

12303012030 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 55069 + ... + 166248.

It is an arithmetic number, because the mean of its divisors is an integer number (492985845).

Almost surely, 212303012030 is an apocalyptic number.

12303012030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12303012030 is an abundant number, since it is smaller than the sum of its proper divisors (19248082050).

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

12303012030 is a wasteful number, since it uses less digits than its factorization.

12303012030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221453.

The product of its (nonzero) digits is 108, while the sum is 15.

Adding to 12303012030 its reverse (3021030321), we get a palindrome (15324042351).

The spelling of 12303012030 in words is "twelve billion, three hundred three million, twelve thousand, thirty".

Divisors: 1 2 3 5 6 10 15 17 30 34 51 85 102 109 170 218 255 327 510 545 654 1090 1635 1853 3270 3706 5559 9265 11118 18530 27795 55590 221317 442634 663951 1106585 1327902 2213170 3319755 3762389 6639510 7524778 11287167 18811945 22574334 24123553 37623890 48247106 56435835 72370659 112871670 120617765 144741318 241235530 361853295 410100401 723706590 820200802 1230301203 2050502005 2460602406 4101004010 6151506015 12303012030