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12281260382 = 2532293831321
BaseRepresentation
bin10110111000000010…
…10010100101011110
31011200220100200001122
423130001102211132
5200123000313012
65350354010542
7613224663566
oct133401224536
934626320048
1012281260382
1152324a6776
122468b76a52
131209500aa1
14847113da6
154bd2cbe72
hex2dc05295e

12281260382 has 32 divisors (see below), whose sum is σ = 18914964480. Its totient is φ = 5978269440.

The previous prime is 12281260351. The next prime is 12281260391. The reversal of 12281260382 is 28306218221.

It is a congruent number.

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, 9296282 + ... + 9297602.

It is an arithmetic number, because the mean of its divisors is an integer number (591092640).

Almost surely, 212281260382 is an apocalyptic number.

12281260382 is a deficient number, since it is larger than the sum of its proper divisors (6633704098).

12281260382 is a wasteful number, since it uses less digits than its factorization.

12281260382 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1988.

The product of its (nonzero) digits is 18432, while the sum is 35.

The spelling of 12281260382 in words is "twelve billion, two hundred eighty-one million, two hundred sixty thousand, three hundred eighty-two".

Divisors: 1 2 53 106 229 383 458 766 1321 2642 12137 20299 24274 40598 70013 87707 140026 175414 302509 505943 605018 1011886 4648471 9296942 16032977 26814979 32065954 53629958 115860947 231721894 6140630191 12281260382