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234541540 = 22567383457
BaseRepresentation
bin11011111101011…
…01000111100100
3121100022221111201
431332231013210
5440020312130
635135012244
75545366402
oct1576550744
9540287451
10234541540
11110435592
126666a084
133978c49c
1423214472
15158cdbca
hexdfad1e4

234541540 has 48 divisors (see below), whose sum is σ = 502290432. Its totient is φ = 91973376.

The previous prime is 234541507. The next prime is 234541543. The reversal of 234541540 is 45145432.

It is a junction number, because it is equal to n+sod(n) for n = 234541499 and 234541508.

It is not an unprimeable number, because it can be changed into a prime (234541543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 512992 + ... + 513448.

It is an arithmetic number, because the mean of its divisors is an integer number (10464384).

Almost surely, 2234541540 is an apocalyptic number.

234541540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

234541540 is an abundant number, since it is smaller than the sum of its proper divisors (267748892).

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

234541540 is a wasteful number, since it uses less digits than its factorization.

234541540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 916 (or 914 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 28.

The square root of 234541540 is about 15314.7491001322. The cubic root of 234541540 is about 616.6990188367.

Adding to 234541540 its reverse (45145432), we get a palindrome (279686972).

The spelling of 234541540 in words is "two hundred thirty-four million, five hundred forty-one thousand, five hundred forty".

Divisors: 1 2 4 5 10 20 67 134 268 335 383 457 670 766 914 1340 1532 1828 1915 2285 3830 4570 7660 9140 25661 30619 51322 61238 102644 122476 128305 153095 175031 256610 306190 350062 513220 612380 700124 875155 1750310 3500620 11727077 23454154 46908308 58635385 117270770 234541540