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552781604 = 22160985889
BaseRepresentation
bin100000111100101…
…100011100100100
31102112011012210202
4200330230130210
52113003002404
6130504010032
716461365114
oct4074543444
91375135722
10552781604
11264038001
12135160918
138a6a560b
14535b5044
15337e221e
hex20f2c724

552781604 has 12 divisors (see below), whose sum is σ = 967980300. Its totient is φ = 276215808.

The previous prime is 552781601. The next prime is 552781631. The reversal of 552781604 is 406187255.

It can be written as a sum of positive squares in 2 ways, for example, as 538704100 + 14077504 = 23210^2 + 3752^2 .

It is not an unprimeable number, because it can be changed into a prime (552781601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36509 + ... + 49380.

It is an arithmetic number, because the mean of its divisors is an integer number (80665025).

Almost surely, 2552781604 is an apocalyptic number.

It is an amenable number.

552781604 is a deficient number, since it is larger than the sum of its proper divisors (415198696).

552781604 is a wasteful number, since it uses less digits than its factorization.

552781604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87502 (or 87500 counting only the distinct ones).

The product of its (nonzero) digits is 67200, while the sum is 38.

The square root of 552781604 is about 23511.3080027463. The cubic root of 552781604 is about 820.7001772983.

The spelling of 552781604 in words is "five hundred fifty-two million, seven hundred eighty-one thousand, six hundred four".

Divisors: 1 2 4 1609 3218 6436 85889 171778 343556 138195401 276390802 552781604