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5725051220 = 2257224172
BaseRepresentation
bin1010101010011110…
…10101100101010100
3112202222200201212002
411111033111211110
543211103114340
62344031414432
7261605063300
oct52517254524
915688621762
105725051220
112478707799
121139384418
1370312c595
143c44bad00
15237926715
hex1553d5954

5725051220 has 54 divisors (see below), whose sum is σ = 13991270958. Its totient is φ = 1962062592.

The previous prime is 5725051183. The next prime is 5725051249. The reversal of 5725051220 is 221505275.

It can be written as a sum of positive squares in 3 ways, for example, as 3756709264 + 1968341956 = 61292^2 + 44366^2 .

It is a super-2 number, since 2×57250512202 = 65552422943246976800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 2367452 + ... + 2369868.

Almost surely, 25725051220 is an apocalyptic number.

It is an amenable number.

5725051220 is an abundant number, since it is smaller than the sum of its proper divisors (8266219738).

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

5725051220 is an equidigital number, since it uses as much as digits as its factorization.

5725051220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4857 (or 2431 counting only the distinct ones).

The product of its (nonzero) digits is 7000, while the sum is 29.

The square root of 5725051220 is about 75664.0682226379. The cubic root of 5725051220 is about 1788.9290869634.

Adding to 5725051220 its reverse (221505275), we get a palindrome (5946556495).

The spelling of 5725051220 in words is "five billion, seven hundred twenty-five million, fifty-one thousand, two hundred twenty".

Divisors: 1 2 4 5 7 10 14 20 28 35 49 70 98 140 196 245 490 980 2417 4834 9668 12085 16919 24170 33838 48340 67676 84595 118433 169190 236866 338380 473732 592165 1184330 2368660 5841889 11683778 23367556 29209445 40893223 58418890 81786446 116837780 163572892 204466115 286252561 408932230 572505122 817864460 1145010244 1431262805 2862525610 5725051220