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234539838 = 232131971743
BaseRepresentation
bin11011111101011…
…00101100111110
3121100022212011200
431332230230332
5440020233323
635135000330
75545361421
oct1576545476
9540285150
10234539838
11110434285
12666690a6
133978b790
14232139b8
15158cd443
hexdfacb3e

234539838 has 96 divisors (see below), whose sum is σ = 584962560. Its totient is φ = 67314240.

The previous prime is 234539797. The next prime is 234539839. The reversal of 234539838 is 838935432.

234539838 is a `hidden beast` number, since 2 + 34 + 539 + 83 + 8 = 666.

234539838 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 234539793 and 234539802.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (234539839) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 315295 + ... + 316037.

It is an arithmetic number, because the mean of its divisors is an integer number (6093360).

Almost surely, 2234539838 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 234539838, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (292481280).

234539838 is an abundant number, since it is smaller than the sum of its proper divisors (350422722).

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

234539838 is a wasteful number, since it uses less digits than its factorization.

234539838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 854 (or 851 counting only the distinct ones).

The product of its digits is 622080, while the sum is 45.

The square root of 234539838 is about 15314.6935326829. The cubic root of 234539838 is about 616.6975270978.

The spelling of 234539838 in words is "two hundred thirty-four million, five hundred thirty-nine thousand, eight hundred thirty-eight".

Divisors: 1 2 3 6 9 13 18 19 26 38 39 57 71 78 114 117 142 171 213 234 247 342 426 494 639 741 743 923 1278 1349 1482 1486 1846 2223 2229 2698 2769 4047 4446 4458 5538 6687 8094 8307 9659 12141 13374 14117 16614 17537 19318 24282 28234 28977 35074 42351 52611 52753 57954 84702 86931 105222 105506 127053 157833 158259 173862 183521 254106 315666 316518 367042 474777 550563 685789 949554 1002307 1101126 1371578 1651689 2004614 2057367 3006921 3303378 4114734 6013842 6172101 9020763 12344202 13029991 18041526 26059982 39089973 78179946 117269919 234539838