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12984031000 = 235312984031
BaseRepresentation
bin11000001011110100…
…01001011100011000
31020111212202010010001
430011322021130120
5203042402443000
65544220502344
7636520304533
oct140572113430
936455663101
1012984031000
115563168736
1226243aa9b4
1312bbca02a5
148b25ada1a
1550ed4a46a
hex305e89718

12984031000 has 32 divisors (see below), whose sum is σ = 30382634880. Its totient is φ = 5193612000.

The previous prime is 12984030991. The next prime is 12984031019. The reversal of 12984031000 is 13048921.

It is a happy number.

It is a super-2 number, since 2×129840310002 (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12984031000.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6491016 + ... + 6493015.

It is an arithmetic number, because the mean of its divisors is an integer number (949457340).

Almost surely, 212984031000 is an apocalyptic number.

12984031000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12984031000 is an abundant number, since it is smaller than the sum of its proper divisors (17398603880).

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

12984031000 is a wasteful number, since it uses less digits than its factorization.

12984031000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12984052 (or 12984038 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 28.

Adding to 12984031000 its reverse (13048921), we get a palindrome (12997079921).

The spelling of 12984031000 in words is "twelve billion, nine hundred eighty-four million, thirty-one thousand".

Divisors: 1 2 4 5 8 10 20 25 40 50 100 125 200 250 500 1000 12984031 25968062 51936124 64920155 103872248 129840310 259680620 324600775 519361240 649201550 1298403100 1623003875 2596806200 3246007750 6492015500 12984031000