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12127386 = 2331113577
BaseRepresentation
bin101110010000…
…110010011010
3211211010122110
4232100302122
511101034021
61111533150
7205036545
oct56206232
924733573
1012127386
116933537
12408a1b6
132687c8b
14187985c
1510e8476
hexb90c9a

12127386 has 32 divisors (see below), whose sum is σ = 25302528. Its totient is φ = 3870720.

The previous prime is 12127351. The next prime is 12127387. The reversal of 12127386 is 68372121.

It is not an unprimeable number, because it can be changed into a prime (12127387) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20730 + ... + 21306.

It is an arithmetic number, because the mean of its divisors is an integer number (790704).

Almost surely, 212127386 is an apocalyptic number.

12127386 is an abundant number, since it is smaller than the sum of its proper divisors (13175142).

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

12127386 is a wasteful number, since it uses less digits than its factorization.

12127386 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 726.

The product of its digits is 4032, while the sum is 30.

The square root of 12127386 is about 3482.4396620760. The cubic root of 12127386 is about 229.7501129778.

The spelling of 12127386 in words is "twelve million, one hundred twenty-seven thousand, three hundred eighty-six".

Divisors: 1 2 3 6 31 62 93 113 186 226 339 577 678 1154 1731 3462 3503 7006 10509 17887 21018 35774 53661 65201 107322 130402 195603 391206 2021231 4042462 6063693 12127386