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528219140 = 225151174907
BaseRepresentation
bin11111011110111…
…111110000000100
31100210221022102212
4133132333300010
52040211003030
6124225322552
716042534331
oct3736776004
91323838385
10528219140
11251190949
12128a96458
1385585607
145021d988
153158e595
hex1f7bfc04

528219140 has 24 divisors (see below), whose sum is σ = 1116612672. Its totient is φ = 209887200.

The previous prime is 528219103. The next prime is 528219143. The reversal of 528219140 is 41912825.

It is a junction number, because it is equal to n+sod(n) for n = 528219097 and 528219106.

It is not an unprimeable number, because it can be changed into a prime (528219143) 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, 84434 + ... + 90473.

It is an arithmetic number, because the mean of its divisors is an integer number (46525528).

Almost surely, 2528219140 is an apocalyptic number.

It is an amenable number.

528219140 is an abundant number, since it is smaller than the sum of its proper divisors (588393532).

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

528219140 is a wasteful number, since it uses less digits than its factorization.

528219140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 175067 (or 175065 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 32.

The square root of 528219140 is about 22983.0185136766. The cubic root of 528219140 is about 808.3598065042.

The spelling of 528219140 in words is "five hundred twenty-eight million, two hundred nineteen thousand, one hundred forty".

Divisors: 1 2 4 5 10 20 151 302 604 755 1510 3020 174907 349814 699628 874535 1749070 3498140 26410957 52821914 105643828 132054785 264109570 528219140