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12121060 = 225786579
BaseRepresentation
bin101110001111…
…001111100100
3211210210222011
4232033033210
511100333220
61111444004
7205012240
oct56171744
924723864
1012121060
116929806
124086604
132685133
141877420
1510e665a
hexb8f3e4

12121060 has 24 divisors (see below), whose sum is σ = 29090880. Its totient is φ = 4155744.

The previous prime is 12121009. The next prime is 12121061. The reversal of 12121060 is 6012121.

It is a self number, because there is not a number n which added to its sum of digits gives 12121060.

It is not an unprimeable number, because it can be changed into a prime (12121061) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43150 + ... + 43429.

It is an arithmetic number, because the mean of its divisors is an integer number (1212120).

Almost surely, 212121060 is an apocalyptic number.

12121060 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12121060 is an abundant number, since it is smaller than the sum of its proper divisors (16969820).

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

12121060 is a wasteful number, since it uses less digits than its factorization.

12121060 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86595 (or 86593 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 12121060 is about 3481.5312722996. The cubic root of 12121060 is about 229.7101578987.

Adding to 12121060 its reverse (6012121), we get a palindrome (18133181).

The spelling of 12121060 in words is "twelve million, one hundred twenty-one thousand, sixty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 140 86579 173158 346316 432895 606053 865790 1212106 1731580 2424212 3030265 6060530 12121060