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12071130 = 235402371
BaseRepresentation
bin101110000011…
…000011011010
3211201021110220
4232003003122
511042234010
61110420510
7204413541
oct56030332
924637426
1012071130
1168a5245
124061736
1326684a6
141863158
1510d6970
hexb830da

12071130 has 16 divisors (see below), whose sum is σ = 28970784. Its totient is φ = 3218960.

The previous prime is 12071123. The next prime is 12071131. The reversal of 12071130 is 3117021.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is not an unprimeable number, because it can be changed into a prime (12071131) 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 7 ways as a sum of consecutive naturals, for example, 201156 + ... + 201215.

It is an arithmetic number, because the mean of its divisors is an integer number (1810674).

Almost surely, 212071130 is an apocalyptic number.

12071130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12071130 is an abundant number, since it is smaller than the sum of its proper divisors (16899654).

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

12071130 is a wasteful number, since it uses less digits than its factorization.

12071130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 402381.

The product of its (nonzero) digits is 42, while the sum is 15.

The square root of 12071130 is about 3474.3531772116. The cubic root of 12071130 is about 229.3943105799.

Adding to 12071130 its reverse (3117021), we get a palindrome (15188151).

The spelling of 12071130 in words is "twelve million, seventy-one thousand, one hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 402371 804742 1207113 2011855 2414226 4023710 6035565 12071130