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12022141 = 31794909
BaseRepresentation
bin101101110111…
…000101111101
3211121210021111
4231313011331
511034202031
61105402021
7204120655
oct55670575
924553244
1012022141
11687145a
124039311
13264c0c1
14184d365
1510c71b1
hexb7717d

12022141 has 8 divisors (see below), whose sum is σ = 12569600. Its totient is φ = 11484720.

The previous prime is 12022139. The next prime is 12022159. The reversal of 12022141 is 14122021.

12022141 = 1562 + 1572 + ... + 3412.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 12022141 - 21 = 12022139 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12022181) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6 + ... + 4903.

It is an arithmetic number, because the mean of its divisors is an integer number (1571200).

Almost surely, 212022141 is an apocalyptic number.

It is an amenable number.

12022141 is a deficient number, since it is larger than the sum of its proper divisors (547459).

12022141 is an equidigital number, since it uses as much as digits as its factorization.

12022141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5019.

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 12022141 is about 3467.2959204544. The cubic root of 12022141 is about 229.0835682110.

Adding to 12022141 its reverse (14122021), we get a palindrome (26144162).

The spelling of 12022141 in words is "twelve million, twenty-two thousand, one hundred forty-one".

Divisors: 1 31 79 2449 4909 152179 387811 12022141