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234344420 = 22516770163
BaseRepresentation
bin11011111011111…
…00111111100100
3121022221221002222
431331330333210
5434443010140
635130451512
75543615612
oct1575747744
9538857088
10234344420
11110310482
1266593b98
133972084b
14231a26b2
15158905b5
hexdf7cfe4

234344420 has 24 divisors (see below), whose sum is σ = 495077184. Its totient is φ = 93175136.

The previous prime is 234344377. The next prime is 234344449. The reversal of 234344420 is 24443432.

It is a self number, because there is not a number n which added to its sum of digits gives 234344420.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31742 + ... + 38421.

It is an arithmetic number, because the mean of its divisors is an integer number (20628216).

Almost surely, 2234344420 is an apocalyptic number.

234344420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

234344420 is an abundant number, since it is smaller than the sum of its proper divisors (260732764).

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

234344420 is a wasteful number, since it uses less digits than its factorization.

234344420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70339 (or 70337 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 26.

The square root of 234344420 is about 15308.3121211974. The cubic root of 234344420 is about 616.5262025665.

Adding to 234344420 its reverse (24443432), we get a palindrome (258787852).

The spelling of 234344420 in words is "two hundred thirty-four million, three hundred forty-four thousand, four hundred twenty".

Divisors: 1 2 4 5 10 20 167 334 668 835 1670 3340 70163 140326 280652 350815 701630 1403260 11717221 23434442 46868884 58586105 117172210 234344420