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12305480530 = 257199252241
BaseRepresentation
bin10110111010111011…
…01011101101010010
31011202120221011212011
423131131223231102
5200200200334110
65353021053134
7613640600350
oct133535535522
934676834764
1012305480530
115245139722
1224750b71aa
131211531035
1484a41a7d0
154c04b348a
hex2dd76bb52

12305480530 has 32 divisors (see below), whose sum is σ = 26646456960. Its totient is φ = 3996967680.

The previous prime is 12305480527. The next prime is 12305480557. The reversal of 12305480530 is 3508450321.

It is a junction number, because it is equal to n+sod(n) for n = 12305480492 and 12305480501.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4624791 + ... + 4627450.

It is an arithmetic number, because the mean of its divisors is an integer number (832701780).

Almost surely, 212305480530 is an apocalyptic number.

12305480530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12305480530 is an abundant number, since it is smaller than the sum of its proper divisors (14340976430).

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

12305480530 is a wasteful number, since it uses less digits than its factorization.

12305480530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9252274.

The product of its (nonzero) digits is 14400, while the sum is 31.

The spelling of 12305480530 in words is "twelve billion, three hundred five million, four hundred eighty thousand, five hundred thirty".

Divisors: 1 2 5 7 10 14 19 35 38 70 95 133 190 266 665 1330 9252241 18504482 46261205 64765687 92522410 129531374 175792579 323828435 351585158 647656870 878962895 1230548053 1757925790 2461096106 6152740265 12305480530