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530121340 = 22573786581
BaseRepresentation
bin11111100110010…
…000001001111100
31100221111221202201
4133212100021330
52041202340330
6124334201244
716064646160
oct3746201174
91327457681
10530121340
11252270011
12129653224
1385aa0388
1450596ca0
1531817eca
hex1f99027c

530121340 has 24 divisors (see below), whose sum is σ = 1272291552. Its totient is φ = 181755840.

The previous prime is 530121301. The next prime is 530121343. The reversal of 530121340 is 43121035.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (530121343) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1893151 + ... + 1893430.

It is an arithmetic number, because the mean of its divisors is an integer number (53012148).

Almost surely, 2530121340 is an apocalyptic number.

It is an amenable number.

530121340 is an abundant number, since it is smaller than the sum of its proper divisors (742170212).

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

530121340 is a wasteful number, since it uses less digits than its factorization.

530121340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3786597 (or 3786595 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 530121340 is about 23024.3640520211. The cubic root of 530121340 is about 809.3289875404.

Adding to 530121340 its reverse (43121035), we get a palindrome (573242375).

The spelling of 530121340 in words is "five hundred thirty million, one hundred twenty-one thousand, three hundred forty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 140 3786581 7573162 15146324 18932905 26506067 37865810 53012134 75731620 106024268 132530335 265060670 530121340