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12281163361 = 195297122027
BaseRepresentation
bin10110111000000001…
…11010111001100001
31011200220011201222021
423130000322321201
5200122434211421
65350351541441
7613224110665
oct133400727141
934626151867
1012281163361
11523243a895
122468b2a881
13120949888c
148470ca8a5
154bd2ad341
hex2dc03ae61

12281163361 has 8 divisors (see below), whose sum is σ = 12930086880. Its totient is φ = 11632494528.

The previous prime is 12281163359. The next prime is 12281163379. The reversal of 12281163361 is 16336118221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12281163361 - 21 = 12281163359 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12281163331) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39630 + ... + 161656.

It is an arithmetic number, because the mean of its divisors is an integer number (1616260860).

Almost surely, 212281163361 is an apocalyptic number.

It is an amenable number.

12281163361 is a deficient number, since it is larger than the sum of its proper divisors (648923519).

12281163361 is a wasteful number, since it uses less digits than its factorization.

12281163361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127343.

The product of its digits is 10368, while the sum is 34.

The spelling of 12281163361 in words is "twelve billion, two hundred eighty-one million, one hundred sixty-three thousand, three hundred sixty-one".

Divisors: 1 19 5297 100643 122027 2318513 646377019 12281163361