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12008128126 = 2171949181211
BaseRepresentation
bin10110010111011110…
…10111111001111110
31010222212102010001011
423023233113321332
5144043040100001
65303315505434
7603400255621
oct131357277176
933885363034
1012008128126
115102303435
1223b15b827a
131194a4c377
1481cb35db8
154a4328d51
hex2cbbd7e7e

12008128126 has 16 divisors (see below), whose sum is σ = 19081623600. Its totient is φ = 5647953280.

The previous prime is 12008128081. The next prime is 12008128133. The reversal of 12008128126 is 62182180021.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24340 + ... + 156871.

It is an arithmetic number, because the mean of its divisors is an integer number (1192601475).

Almost surely, 212008128126 is an apocalyptic number.

12008128126 is a deficient number, since it is larger than the sum of its proper divisors (7073495474).

12008128126 is a wasteful number, since it uses less digits than its factorization.

12008128126 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183179.

The product of its (nonzero) digits is 3072, while the sum is 31.

The spelling of 12008128126 in words is "twelve billion, eight million, one hundred twenty-eight thousand, one hundred twenty-six".

Divisors: 1 2 17 34 1949 3898 33133 66266 181211 362422 3080587 6161174 353180239 706360478 6004064063 12008128126