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552004081 = 2213249437
BaseRepresentation
bin100000111001101…
…110100111110001
31102110200201020121
4200321232213301
52112303112311
6130435210241
716451646226
oct4071564761
91373621217
10552004081
11263656922
12134a46981
138a492745
145345194d
15336dbb71
hex20e6e9f1

552004081 has 4 divisors (see below), whose sum is σ = 552255732. Its totient is φ = 551752432.

The previous prime is 552004069. The next prime is 552004091. The reversal of 552004081 is 180400255.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 286151056 + 265853025 = 16916^2 + 16305^2 .

It is a cyclic number.

It is not a de Polignac number, because 552004081 - 27 = 552003953 is a prime.

It is a super-2 number, since 2×5520040812 = 609417010881309122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (552004021) 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, 122506 + ... + 126931.

It is an arithmetic number, because the mean of its divisors is an integer number (138063933).

Almost surely, 2552004081 is an apocalyptic number.

It is an amenable number.

552004081 is a deficient number, since it is larger than the sum of its proper divisors (251651).

552004081 is a wasteful number, since it uses less digits than its factorization.

552004081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 251650.

The product of its (nonzero) digits is 1600, while the sum is 25.

The square root of 552004081 is about 23494.7670982285. The cubic root of 552004081 is about 820.3152074923.

The spelling of 552004081 in words is "five hundred fifty-two million, four thousand, eighty-one".

Divisors: 1 2213 249437 552004081