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12010220 = 2254631297
BaseRepresentation
bin101101110100…
…001011101100
3211121011220222
4231310023230
511033311340
61105230512
7204041135
oct55641354
924534828
1012010220
116863502
124032438
132646851
141848c8c
1510c38b5
hexb742ec

12010220 has 24 divisors (see below), whose sum is σ = 25295424. Its totient is φ = 4790016.

The previous prime is 12010199. The next prime is 12010241. The reversal of 12010220 is 2201021.

It is an interprime number because it is at equal distance from previous prime (12010199) and next prime (12010241).

It is a junction number, because it is equal to n+sod(n) for n = 12010198 and 12010207.

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 7 ways as a sum of consecutive naturals, for example, 8612 + ... + 9908.

It is an arithmetic number, because the mean of its divisors is an integer number (1053976).

Almost surely, 212010220 is an apocalyptic number.

12010220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12010220 is an abundant number, since it is smaller than the sum of its proper divisors (13285204).

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

12010220 is a wasteful number, since it uses less digits than its factorization.

12010220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1769 (or 1767 counting only the distinct ones).

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

The square root of 12010220 is about 3465.5764311295. The cubic root of 12010220 is about 229.0078243991.

Adding to 12010220 its reverse (2201021), we get a palindrome (14211241).

The spelling of 12010220 in words is "twelve million, ten thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 463 926 1297 1852 2315 2594 4630 5188 6485 9260 12970 25940 600511 1201022 2402044 3002555 6005110 12010220