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575025820 = 225314122621
BaseRepresentation
bin100010010001100…
…011001010011100
31111002000100010121
4202101203022130
52134201311240
6133020444324
720151432055
oct4221431234
91432010117
10575025820
11275650456
121406a96a4
1392193385
145652572c
153573804a
hex2246329c

575025820 has 48 divisors (see below), whose sum is σ = 1276966656. Its totient is φ = 217152000.

The previous prime is 575025817. The next prime is 575025821. The reversal of 575025820 is 28520575.

575025820 = 4812 + 4822 + ... + 12242.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (575025821) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14110 + ... + 36730.

It is an arithmetic number, because the mean of its divisors is an integer number (26603472).

Almost surely, 2575025820 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 575025820, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (638483328).

575025820 is an abundant number, since it is smaller than the sum of its proper divisors (701940836).

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

575025820 is a wasteful number, since it uses less digits than its factorization.

575025820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22702 (or 22700 counting only the distinct ones).

The product of its (nonzero) digits is 28000, while the sum is 34.

The square root of 575025820 is about 23979.6959947369. The cubic root of 575025820 is about 831.5641959971.

The spelling of 575025820 in words is "five hundred seventy-five million, twenty-five thousand, eight hundred twenty".

Divisors: 1 2 4 5 10 20 31 41 62 82 124 155 164 205 310 410 620 820 1271 2542 5084 6355 12710 22621 25420 45242 90484 113105 226210 452420 701251 927461 1402502 1854922 2805004 3506255 3709844 4637305 7012510 9274610 14025020 18549220 28751291 57502582 115005164 143756455 287512910 575025820