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530818128 = 24323686237
BaseRepresentation
bin11111101000111…
…010010001010000
31100222211100120200
4133220322101100
52041342140003
6124401135200
716103610501
oct3750722120
91328740520
10530818128
112526a6575
1212992a500
1385c85589
14506d8ba8
15319046a3
hex1fa3a450

530818128 has 30 divisors (see below), whose sum is σ = 1485553914. Its totient is φ = 176939328.

The previous prime is 530818109. The next prime is 530818133. The reversal of 530818128 is 821818035.

It can be written as a sum of positive squares in only one way, i.e., 473845824 + 56972304 = 21768^2 + 7548^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 530818092 and 530818101.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1842975 + ... + 1843262.

Almost surely, 2530818128 is an apocalyptic number.

It is an amenable number.

530818128 is an abundant number, since it is smaller than the sum of its proper divisors (954735786).

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

530818128 is a wasteful number, since it uses less digits than its factorization.

530818128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3686251 (or 3686242 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 36.

The square root of 530818128 is about 23039.4906193692. The cubic root of 530818128 is about 809.6834245273.

It can be divided in two parts, 5308 and 18128, that added together give a triangular number (23436 = T216).

The spelling of 530818128 in words is "five hundred thirty million, eight hundred eighteen thousand, one hundred twenty-eight".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 36 48 72 144 3686237 7372474 11058711 14744948 22117422 29489896 33176133 44234844 58979792 66352266 88469688 132704532 176939376 265409064 530818128