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12142983 = 38348767
BaseRepresentation
bin101110010100…
…100110000111
3211211221001010
4232110212013
511102033413
61112133303
7205133166
oct56244607
924757033
1012142983
116944226
124097233
1326920c8
1418813dd
1510ecdc3
hexb94987

12142983 has 8 divisors (see below), whose sum is σ = 16386048. Its totient is φ = 7997624.

The previous prime is 12142969. The next prime is 12142997. The reversal of 12142983 is 38924121.

12142983 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (12142969) and next prime (12142997).

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 12142983 - 210 = 12141959 is a prime.

It is a super-2 number, since 2×121429832 = 294904072276578, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12142983.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12142283) 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, 24135 + ... + 24632.

It is an arithmetic number, because the mean of its divisors is an integer number (2048256).

Almost surely, 212142983 is an apocalyptic number.

12142983 is a deficient number, since it is larger than the sum of its proper divisors (4243065).

12142983 is an equidigital number, since it uses as much as digits as its factorization.

12142983 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48853.

The product of its digits is 3456, while the sum is 30.

The square root of 12142983 is about 3484.6783208784. The cubic root of 12142983 is about 229.8485644606.

The spelling of 12142983 in words is "twelve million, one hundred forty-two thousand, nine hundred eighty-three".

Divisors: 1 3 83 249 48767 146301 4047661 12142983