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530040 = 23357631
BaseRepresentation
bin10000001011001111000
3222221002010
42001121320
5113430130
615205520
74335210
oct2013170
9887063
10530040
11332255
122168a0
13157344
14db240
15a70b0
hex81678

530040 has 64 divisors (see below), whose sum is σ = 1820160. Its totient is φ = 120960.

The previous prime is 530027. The next prime is 530041. The reversal of 530040 is 40035.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is an Ulam number.

It is a zygodrome in base 11.

It is a junction number, because it is equal to n+sod(n) for n = 529998 and 530025.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 530040.

It is not an unprimeable number, because it can be changed into a prime (530041) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 525 + ... + 1155.

It is an arithmetic number, because the mean of its divisors is an integer number (28440).

2530040 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 530040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (910080).

530040 is an abundant number, since it is smaller than the sum of its proper divisors (1290120).

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

530040 is a wasteful number, since it uses less digits than its factorization.

530040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 652 (or 648 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 12.

The square root of 530040 is about 728.0384605225. The cubic root of 530040 is about 80.9287591869.

Adding to 530040 its reverse (40035), we get a palindrome (570075).

The spelling of 530040 in words is "five hundred thirty thousand, forty".

Divisors: 1 2 3 4 5 6 7 8 10 12 14 15 20 21 24 28 30 35 40 42 56 60 70 84 105 120 140 168 210 280 420 631 840 1262 1893 2524 3155 3786 4417 5048 6310 7572 8834 9465 12620 13251 15144 17668 18930 22085 25240 26502 35336 37860 44170 53004 66255 75720 88340 106008 132510 176680 265020 530040