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12010122 = 232667229
BaseRepresentation
bin101101110100…
…001010001010
3211121011210100
4231310022022
511033310442
61105230230
7204040635
oct55641212
924534710
1012010122
116863423
124032376
1326467a7
141848c1c
1510c384c
hexb7428a

12010122 has 12 divisors (see below), whose sum is σ = 26021970. Its totient is φ = 4003368.

The previous prime is 12010093. The next prime is 12010129. The reversal of 12010122 is 22101021.

It can be written as a sum of positive squares in only one way, i.e., 8242641 + 3767481 = 2871^2 + 1941^2 .

It is a Harshad number since it is a multiple of its sum of digits (9).

It is not an unprimeable number, because it can be changed into a prime (12010129) 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 5 ways as a sum of consecutive naturals, for example, 333597 + ... + 333632.

Almost surely, 212010122 is an apocalyptic number.

12010122 is an abundant number, since it is smaller than the sum of its proper divisors (14011848).

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

12010122 is a wasteful number, since it uses less digits than its factorization.

12010122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 667237 (or 667234 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

The square root of 12010122 is about 3465.5622920386. The cubic root of 12010122 is about 229.0072015177.

Adding to 12010122 its reverse (22101021), we get a palindrome (34111143).

The spelling of 12010122 in words is "twelve million, ten thousand, one hundred twenty-two".

Divisors: 1 2 3 6 9 18 667229 1334458 2001687 4003374 6005061 12010122