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12125146 = 211551143
BaseRepresentation
bin101110010000…
…001111011010
3211211000120111
4232100033122
511101001041
61111514534
7205030165
oct56201732
924730514
1012125146
116931890
124088a4a
132686c57
141878adc
1510e7981
hexb903da

12125146 has 8 divisors (see below), whose sum is σ = 19841184. Its totient is φ = 5511420.

The previous prime is 12125137. The next prime is 12125147. The reversal of 12125146 is 64152121.

12125146 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Harshad number since it is a multiple of its sum of digits (22), and also a Moran number because the ratio is a prime number: 551143 = 12125146 / (1 + 2 + 1 + 2 + 5 + 1 + 4 + 6).

It is not an unprimeable number, because it can be changed into a prime (12125147) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 275550 + ... + 275593.

It is an arithmetic number, because the mean of its divisors is an integer number (2480148).

Almost surely, 212125146 is an apocalyptic number.

12125146 is a deficient number, since it is larger than the sum of its proper divisors (7716038).

12125146 is a wasteful number, since it uses less digits than its factorization.

12125146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 551156.

The product of its digits is 480, while the sum is 22.

The square root of 12125146 is about 3482.1180336112. The cubic root of 12125146 is about 229.7359667047.

Adding to 12125146 its reverse (64152121), we get a palindrome (76277267).

The spelling of 12125146 in words is "twelve million, one hundred twenty-five thousand, one hundred forty-six".

Divisors: 1 2 11 22 551143 1102286 6062573 12125146