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12483123530 = 2513752117489
BaseRepresentation
bin10111010000000110…
…10101100101001010
31012012222012101020112
423220003111211022
5201031134423110
65422404354322
7621225541103
oct135003254512
935188171215
1012483123530
115326441519
1225046a59a2
13123c28b137
14865c5d3aa
154d0da3405
hex2e80d594a

12483123530 has 32 divisors (see below), whose sum is σ = 22678373520. Its totient is φ = 4947005440.

The previous prime is 12483123517. The next prime is 12483123539. The reversal of 12483123530 is 3532138421.

It can be written as a sum of positive squares in 8 ways, for example, as 898260841 + 11584862689 = 29971^2 + 107633^2 .

It is not an unprimeable number, because it can be changed into a prime (12483123539) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 705026 + ... + 722514.

Almost surely, 212483123530 is an apocalyptic number.

12483123530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12483123530 is a deficient number, since it is larger than the sum of its proper divisors (10195249990).

12483123530 is a wasteful number, since it uses less digits than its factorization.

12483123530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18154.

The product of its (nonzero) digits is 17280, while the sum is 32.

The spelling of 12483123530 in words is "twelve billion, four hundred eighty-three million, one hundred twenty-three thousand, five hundred thirty".

Divisors: 1 2 5 10 137 274 521 685 1042 1370 2605 5210 17489 34978 71377 87445 142754 174890 356885 713770 2395993 4791986 9111769 11979965 18223538 23959930 45558845 91117690 1248312353 2496624706 6241561765 12483123530