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12106536231 = 319320909389
BaseRepresentation
bin10110100011001101…
…10001010100100111
31011020201120202120210
423101212301110213
5144243233124411
65321153030503
7606003600666
oct132146612447
934221522523
1012106536231
115152907949
12241a555433
1311ac25640a
1482bc30ddd
154accb6ca6
hex2d19b1527

12106536231 has 8 divisors (see below), whose sum is σ = 16225686640. Its totient is φ = 8029204992.

The previous prime is 12106536209. The next prime is 12106536241. The reversal of 12106536231 is 13263560121.

12106536231 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 12106536231 - 25 = 12106536199 is a prime.

It is a super-2 number, since 2×121065362312 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12106536241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10454116 + ... + 10455273.

It is an arithmetic number, because the mean of its divisors is an integer number (2028210830).

Almost surely, 212106536231 is an apocalyptic number.

12106536231 is a deficient number, since it is larger than the sum of its proper divisors (4119150409).

12106536231 is a wasteful number, since it uses less digits than its factorization.

12106536231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20909585.

The product of its (nonzero) digits is 6480, while the sum is 30.

The spelling of 12106536231 in words is "twelve billion, one hundred six million, five hundred thirty-six thousand, two hundred thirty-one".

Divisors: 1 3 193 579 20909389 62728167 4035512077 12106536231