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12302331320 = 235521590323
BaseRepresentation
bin10110111010100011…
…01010110110111000
31011202101000011221202
423131101222312320
5200143344100240
65352425353332
7613602043106
oct133521526670
934671004852
1012302331320
115243388674
122474038848
13121099a7b6
14849c3ac76
154c0090315
hex2dd46adb8

12302331320 has 32 divisors (see below), whose sum is σ = 27733421520. Its totient is φ = 4911479040.

The previous prime is 12302331319. The next prime is 12302331329. The reversal of 12302331320 is 2313320321.

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

It is a junction number, because it is equal to n+sod(n) for n = 12302331292 and 12302331301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12302331329) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 274322 + ... + 316001.

Almost surely, 212302331320 is an apocalyptic number.

12302331320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12302331320 is an abundant number, since it is smaller than the sum of its proper divisors (15431090200).

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

12302331320 is a wasteful number, since it uses less digits than its factorization.

12302331320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 590855 (or 590851 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 12302331320 its reverse (2313320321), we get a palindrome (14615651641).

The spelling of 12302331320 in words is "twelve billion, three hundred two million, three hundred thirty-one thousand, three hundred twenty".

Divisors: 1 2 4 5 8 10 20 40 521 1042 2084 2605 4168 5210 10420 20840 590323 1180646 2361292 2951615 4722584 5903230 11806460 23612920 307558283 615116566 1230233132 1537791415 2460466264 3075582830 6151165660 12302331320