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234540 = 223251303
BaseRepresentation
bin111001010000101100
3102220201200
4321100230
530001130
65005500
71664535
oct712054
9386650
10234540
11150239
12b3890
13829a7
146168c
1549760
hex3942c

234540 has 36 divisors (see below), whose sum is σ = 711984. Its totient is φ = 62496.

The previous prime is 234539. The next prime is 234541. The reversal of 234540 is 45432.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (234539) and next prime (234541).

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (234541) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 472 + ... + 831.

2234540 is an apocalyptic number.

234540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

234540 is an abundant number, since it is smaller than the sum of its proper divisors (477444).

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

234540 is a wasteful number, since it uses less digits than its factorization.

234540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1318 (or 1313 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 18.

The square root of 234540 is about 484.2932995613. The cubic root of 234540 is about 61.6697669085.

Adding to 234540 its reverse (45432), we get a palindrome (279972).

The spelling of 234540 in words is "two hundred thirty-four thousand, five hundred forty".

Divisors: 1 2 3 4 5 6 9 10 12 15 18 20 30 36 45 60 90 180 1303 2606 3909 5212 6515 7818 11727 13030 15636 19545 23454 26060 39090 46908 58635 78180 117270 234540