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2452216660 = 225122610833
BaseRepresentation
bin1001001000101001…
…1101101101010100
320022220021111212021
42102022131231110
520010231413120
61043155302524
7114524332465
oct22212355524
96286244767
102452216660
111049237743
125852aaa44
1330106bc9a
14193972d6c
15e543caaa
hex9229db54

2452216660 has 12 divisors (see below), whose sum is σ = 5149655028. Its totient is φ = 980886656.

The previous prime is 2452216649. The next prime is 2452216661. The reversal of 2452216660 is 666122542.

It can be written as a sum of positive squares in 2 ways, for example, as 1750920336 + 701296324 = 41844^2 + 26482^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2452216661) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61305397 + ... + 61305436.

It is an arithmetic number, because the mean of its divisors is an integer number (429137919).

Almost surely, 22452216660 is an apocalyptic number.

2452216660 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2452216660 is an abundant number, since it is smaller than the sum of its proper divisors (2697438368).

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

2452216660 is a wasteful number, since it uses less digits than its factorization.

2452216660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122610842 (or 122610840 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 34.

The square root of 2452216660 is about 49519.8612679801. The cubic root of 2452216660 is about 1348.5061958771.

The spelling of 2452216660 in words is "two billion, four hundred fifty-two million, two hundred sixteen thousand, six hundred sixty".

Divisors: 1 2 4 5 10 20 122610833 245221666 490443332 613054165 1226108330 2452216660