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12234140 = 225611707
BaseRepresentation
bin101110101010…
…110110011100
3212000120002022
4232222312130
511112443030
61114115312
7205663022
oct56526634
925016068
1012234140
1169a6766
12411bb38
1326c4749
1418a6712
151119de5
hexbaad9c

12234140 has 12 divisors (see below), whose sum is σ = 25691736. Its totient is φ = 4893648.

The previous prime is 12234127. The next prime is 12234151. The reversal of 12234140 is 4143221.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 305834 + ... + 305873.

It is an arithmetic number, because the mean of its divisors is an integer number (2140978).

Almost surely, 212234140 is an apocalyptic number.

12234140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12234140 is an abundant number, since it is smaller than the sum of its proper divisors (13457596).

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

12234140 is a wasteful number, since it uses less digits than its factorization.

12234140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 611716 (or 611714 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 12234140 is about 3497.7335518876. The cubic root of 12234140 is about 230.4222865771.

Adding to 12234140 its reverse (4143221), we get a palindrome (16377361).

The spelling of 12234140 in words is "twelve million, two hundred thirty-four thousand, one hundred forty".

Divisors: 1 2 4 5 10 20 611707 1223414 2446828 3058535 6117070 12234140