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12452252020 = 22513169328289
BaseRepresentation
bin10111001100011011…
…00100100101110100
31012010211002221111021
423212031210211310
5201000234031040
65415342550524
7620402252515
oct134615444564
935124087437
1012452252020
11530aa7627a
1224b6298444
131235a6c580
14861b04a0c
154cd30624a
hex2e6364974

12452252020 has 48 divisors (see below), whose sum is σ = 28178876880. Its totient is φ = 4594876416.

The previous prime is 12452252017. The next prime is 12452252023. The reversal of 12452252020 is 2025225421.

12452252020 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (12452252017) and next prime (12452252023).

It can be written as a sum of positive squares in 8 ways, for example, as 34715664 + 12417536356 = 5892^2 + 111434^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12452252023) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 426036 + ... + 454324.

It is an arithmetic number, because the mean of its divisors is an integer number (587059935).

Almost surely, 212452252020 is an apocalyptic number.

12452252020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12452252020 is an abundant number, since it is smaller than the sum of its proper divisors (15726624860).

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

12452252020 is a wasteful number, since it uses less digits than its factorization.

12452252020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30004 (or 30002 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 25.

Adding to 12452252020 its reverse (2025225421), we get a palindrome (14477477441).

The spelling of 12452252020 in words is "twelve billion, four hundred fifty-two million, two hundred fifty-two thousand, twenty".

Divisors: 1 2 4 5 10 13 20 26 52 65 130 260 1693 3386 6772 8465 16930 22009 28289 33860 44018 56578 88036 110045 113156 141445 220090 282890 367757 440180 565780 735514 1471028 1838785 3677570 7355140 47893277 95786554 191573108 239466385 478932770 622612601 957865540 1245225202 2490450404 3113063005 6226126010 12452252020