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234235428 = 223759151313
BaseRepresentation
bin11011111011000…
…10011000100100
3121022202101121020
431331202120210
5434431013203
635124251140
75542653060
oct1575423044
9538671536
10234235428
111102465a9
1266540ab0
13396b305b
1423174aa0
151586d153
hexdf62624

234235428 has 96 divisors (see below), whose sum is σ = 641464320. Its totient is φ = 65145600.

The previous prime is 234235423. The next prime is 234235481. The reversal of 234235428 is 824532432.

234235428 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (234235423) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 748200 + ... + 748512.

It is an arithmetic number, because the mean of its divisors is an integer number (6681920).

Almost surely, 2234235428 is an apocalyptic number.

234235428 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 234235428, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (320732160).

234235428 is an abundant number, since it is smaller than the sum of its proper divisors (407228892).

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

234235428 is a wasteful number, since it uses less digits than its factorization.

234235428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 537 (or 535 counting only the distinct ones).

The product of its digits is 46080, while the sum is 33.

The square root of 234235428 is about 15304.7518111206. The cubic root of 234235428 is about 616.4306070265.

The spelling of 234235428 in words is "two hundred thirty-four million, two hundred thirty-five thousand, four hundred twenty-eight".

Divisors: 1 2 3 4 6 7 12 14 21 28 42 59 84 118 151 177 236 302 313 354 413 453 604 626 708 826 906 939 1057 1239 1252 1652 1812 1878 2114 2191 2478 3171 3756 4228 4382 4956 6342 6573 8764 8909 12684 13146 17818 18467 26292 26727 35636 36934 47263 53454 55401 62363 73868 94526 106908 110802 124726 129269 141789 187089 189052 221604 249452 258538 283578 330841 374178 387807 517076 567156 661682 748356 775614 992523 1323364 1551228 1985046 2788517 3970092 5577034 8365551 11154068 16731102 19519619 33462204 39039238 58558857 78078476 117117714 234235428