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576664885 = 5557207061
BaseRepresentation
bin100010010111110…
…011010100110101
31111012002121111201
4202113303110311
52140111234020
6133115532501
720201366506
oct4227632465
91435077451
10576664885
1127656a955
1214115a131
1392618434
1456830bad
153595da0a
hex225f3535

576664885 has 8 divisors (see below), whose sum is σ = 693243576. Its totient is φ = 460501440.

The previous prime is 576664841. The next prime is 576664889. The reversal of 576664885 is 588466675.

It can be written as a sum of positive squares in 4 ways, for example, as 113167044 + 463497841 = 10638^2 + 21529^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 576664885 - 27 = 576664757 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (576664889) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 100746 + ... + 106315.

It is an arithmetic number, because the mean of its divisors is an integer number (86655447).

Almost surely, 2576664885 is an apocalyptic number.

It is an amenable number.

576664885 is a deficient number, since it is larger than the sum of its proper divisors (116578691).

576664885 is a wasteful number, since it uses less digits than its factorization.

576664885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 207623.

The product of its digits is 9676800, while the sum is 55.

The square root of 576664885 is about 24013.8477758147. The cubic root of 576664885 is about 832.3535488338.

The spelling of 576664885 in words is "five hundred seventy-six million, six hundred sixty-four thousand, eight hundred eighty-five".

Divisors: 1 5 557 2785 207061 1035305 115332977 576664885