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12139062 = 2313198191
BaseRepresentation
bin101110010011…
…101000110110
3211211201122220
4232103220312
511101422222
61112103210
7205115565
oct56235066
924751586
1012139062
116941291
124094b06
1326903a0
14187dbdc
1510ebb5c
hexb93a36

12139062 has 32 divisors (see below), whose sum is σ = 27525120. Its totient is φ = 3538080.

The previous prime is 12139051. The next prime is 12139103. The reversal of 12139062 is 26093121.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2614 + ... + 5577.

It is an arithmetic number, because the mean of its divisors is an integer number (860160).

Almost surely, 212139062 is an apocalyptic number.

12139062 is an abundant number, since it is smaller than the sum of its proper divisors (15386058).

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

12139062 is a wasteful number, since it uses less digits than its factorization.

12139062 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8228.

The product of its (nonzero) digits is 648, while the sum is 24.

The square root of 12139062 is about 3484.1156697217. The cubic root of 12139062 is about 229.8238222359.

The spelling of 12139062 in words is "twelve million, one hundred thirty-nine thousand, sixty-two".

Divisors: 1 2 3 6 13 19 26 38 39 57 78 114 247 494 741 1482 8191 16382 24573 49146 106483 155629 212966 311258 319449 466887 638898 933774 2023177 4046354 6069531 12139062