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23141142 = 2321285619
BaseRepresentation
bin101100001000…
…1101100010110
31121112200200100
41120101230112
521411004032
62143554530
7400460613
oct130215426
947480610
1023141142
1112076312
1278bba46
134a430ab
14310550a
15207197c
hex1611b16

23141142 has 12 divisors (see below), whose sum is σ = 50139180. Its totient is φ = 7713708.

The previous prime is 23141141. The next prime is 23141177. The reversal of 23141142 is 24114132.

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 1285619 = 23141142 / (2 + 3 + 1 + 4 + 1 + 1 + 4 + 2).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23141141) 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 5 ways as a sum of consecutive naturals, for example, 642792 + ... + 642827.

It is an arithmetic number, because the mean of its divisors is an integer number (4178265).

Almost surely, 223141142 is an apocalyptic number.

23141142 is an abundant number, since it is smaller than the sum of its proper divisors (26998038).

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

23141142 is a wasteful number, since it uses less digits than its factorization.

23141142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1285627 (or 1285624 counting only the distinct ones).

The product of its digits is 192, while the sum is 18.

The square root of 23141142 is about 4810.5240878723. The cubic root of 23141142 is about 284.9672353839.

Adding to 23141142 its reverse (24114132), we get a palindrome (47255274).

The spelling of 23141142 in words is "twenty-three million, one hundred forty-one thousand, one hundred forty-two".

Divisors: 1 2 3 6 9 18 1285619 2571238 3856857 7713714 11570571 23141142