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530987520 = 2935721783
BaseRepresentation
bin11111101001100…
…011101000000000
31101000010221221110
4133221203220000
52041413100040
6124404523320
716105214400
oct3751435000
91330127843
10530987520
11252801868
121299b0540
13860146cb
1450740800
1531939980
hex1fa63a00

530987520 has 480 divisors, whose sum is σ = 2115989568. Its totient is φ = 112852992.

The previous prime is 530987491. The next prime is 530987533. The reversal of 530987520 is 25789035.

It is a tau number, because it is divible by the number of its divisors (480).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6397399 + ... + 6397481.

Almost surely, 2530987520 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 530987520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1057994784).

530987520 is an abundant number, since it is smaller than the sum of its proper divisors (1585002048).

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

530987520 is a wasteful number, since it uses less digits than its factorization.

530987520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140 (or 117 counting only the distinct ones).

The product of its (nonzero) digits is 75600, while the sum is 39.

The square root of 530987520 is about 23043.1664490799. The cubic root of 530987520 is about 809.7695427291.

It can be divided in two parts, 5309 and 87520, that added together give a palindrome (92829).

The spelling of 530987520 in words is "five hundred thirty million, nine hundred eighty-seven thousand, five hundred twenty".