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530256143 = 3079172217
BaseRepresentation
bin11111100110110…
…001000100001111
31100221202210200102
4133212301010033
52041221144033
6124341121315
716066050164
oct3746610417
91327683612
10530256143
1125235231a
121296b923b
1385b19841
14505d006b
1531842de8
hex1f9b110f

530256143 has 4 divisors (see below), whose sum is σ = 530431440. Its totient is φ = 530080848.

The previous prime is 530256121. The next prime is 530256179. The reversal of 530256143 is 341652035.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 530256143 - 26 = 530256079 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (530256443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 83030 + ... + 89187.

It is an arithmetic number, because the mean of its divisors is an integer number (132607860).

Almost surely, 2530256143 is an apocalyptic number.

530256143 is a deficient number, since it is larger than the sum of its proper divisors (175297).

530256143 is a wasteful number, since it uses less digits than its factorization.

530256143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 175296.

The product of its (nonzero) digits is 10800, while the sum is 29.

The square root of 530256143 is about 23027.2912649317. The cubic root of 530256143 is about 809.3975823577.

The spelling of 530256143 in words is "five hundred thirty million, two hundred fifty-six thousand, one hundred forty-three".

Divisors: 1 3079 172217 530256143