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12125630 = 2511110233
BaseRepresentation
bin101110010000…
…010110111110
3211211001020102
4232100112332
511101010010
61111521102
7205031456
oct56202676
924731212
1012125630
116932190
124089192
13268723a
141878d66
1510e7ba5
hexb905be

12125630 has 16 divisors (see below), whose sum is σ = 23810544. Its totient is φ = 4409280.

The previous prime is 12125609. The next prime is 12125647. The reversal of 12125630 is 3652121.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

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, 55007 + ... + 55226.

It is an arithmetic number, because the mean of its divisors is an integer number (1488159).

Almost surely, 212125630 is an apocalyptic number.

12125630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12125630 is a deficient number, since it is larger than the sum of its proper divisors (11684914).

12125630 is a wasteful number, since it uses less digits than its factorization.

12125630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110251.

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 12125630 is about 3482.1875308490. The cubic root of 12125630 is about 229.7390234577.

Adding to 12125630 its reverse (3652121), we get a palindrome (15777751).

The spelling of 12125630 in words is "twelve million, one hundred twenty-five thousand, six hundred thirty".

Divisors: 1 2 5 10 11 22 55 110 110233 220466 551165 1102330 1212563 2425126 6062815 12125630