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12129068 = 2272193257
BaseRepresentation
bin101110010001…
…001100101100
3211211012221202
4232101030230
511101112233
61111545032
7205044500
oct56211454
924735852
1012129068
116934826
12408b178
132688983
14187a300
1510e8be8
hexb9132c

12129068 has 36 divisors (see below), whose sum is σ = 25998840. Its totient is φ = 4923072.

The previous prime is 12129067. The next prime is 12129079. The reversal of 12129068 is 86092121.

It is a super-2 number, since 2×121290682 = 294228581097248, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12129068.

It is not an unprimeable number, because it can be changed into a prime (12129067) 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 11 ways as a sum of consecutive naturals, for example, 2096 + ... + 5352.

It is an arithmetic number, because the mean of its divisors is an integer number (722190).

Almost surely, 212129068 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12129068, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12999420).

12129068 is an abundant number, since it is smaller than the sum of its proper divisors (13869772).

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

12129068 is a wasteful number, since it uses less digits than its factorization.

12129068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3294 (or 3285 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 29.

The square root of 12129068 is about 3482.6811510674. The cubic root of 12129068 is about 229.7607341681.

The spelling of 12129068 in words is "twelve million, one hundred twenty-nine thousand, sixty-eight".

Divisors: 1 2 4 7 14 19 28 38 49 76 98 133 196 266 532 931 1862 3257 3724 6514 13028 22799 45598 61883 91196 123766 159593 247532 319186 433181 638372 866362 1732724 3032267 6064534 12129068