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655057 = 13411229
BaseRepresentation
bin10011111111011010001
31020021120101
42133323101
5131430212
622012401
75365534
oct2377321
91207511
10655057
11408177
12277101
1319c210
14130a1b
15ce157
hex9fed1

655057 has 8 divisors (see below), whose sum is σ = 723240. Its totient is φ = 589440.

The previous prime is 655043. The next prime is 655069. The reversal of 655057 is 750556.

It can be written as a sum of positive squares in 4 ways, for example, as 40401 + 614656 = 201^2 + 784^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 655057 - 219 = 130769 is a prime.

It is not an unprimeable number, because it can be changed into a prime (655037) 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 7 ways as a sum of consecutive naturals, for example, 82 + ... + 1147.

It is an arithmetic number, because the mean of its divisors is an integer number (90405).

2655057 is an apocalyptic number.

It is an amenable number.

655057 is a deficient number, since it is larger than the sum of its proper divisors (68183).

655057 is a wasteful number, since it uses less digits than its factorization.

655057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1283.

The product of its (nonzero) digits is 5250, while the sum is 28.

The square root of 655057 is about 809.3559167634. The cubic root of 655057 is about 86.8479751353.

The spelling of 655057 in words is "six hundred fifty-five thousand, fifty-seven".

Divisors: 1 13 41 533 1229 15977 50389 655057