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528912100 = 22525289121
BaseRepresentation
bin11111100001101…
…000111011100100
31100212020112000001
4133201220323210
52040400141400
6124252231044
716051451533
oct3741507344
91325215001
10528912100
11251614542
1212916b484
1385768b52
145036031a
1531679a6a
hex1f868ee4

528912100 has 18 divisors (see below), whose sum is σ = 1147739474. Its totient is φ = 211564800.

The previous prime is 528912091. The next prime is 528912113. The reversal of 528912100 is 1219825.

It can be written as a sum of positive squares in 3 ways, for example, as 4096 + 528908004 = 64^2 + 22998^2 .

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, 2644461 + ... + 2644660.

Almost surely, 2528912100 is an apocalyptic number.

528912100 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

528912100 is an abundant number, since it is smaller than the sum of its proper divisors (618827374).

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

528912100 is a wasteful number, since it uses less digits than its factorization.

528912100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5289135 (or 5289128 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 28.

The square root of 528912100 is about 22998.0890510494. The cubic root of 528912100 is about 808.7131423282.

The spelling of 528912100 in words is "five hundred twenty-eight million, nine hundred twelve thousand, one hundred".

Divisors: 1 2 4 5 10 20 25 50 100 5289121 10578242 21156484 26445605 52891210 105782420 132228025 264456050 528912100