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68590033 = 127540079
BaseRepresentation
bin1000001011010…
…01100111010001
311210001201211121
410011221213101
5120024340113
610450042241
71462001641
oct405514721
9153051747
1068590033
1135798786
121ab79381
1311296b25
149176521
15604ce8d
hex41699d1

68590033 has 4 divisors (see below), whose sum is σ = 69130240. Its totient is φ = 68049828.

The previous prime is 68590013. The next prime is 68590097. The reversal of 68590033 is 33009586.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-68590033 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68590013) 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, 269913 + ... + 270166.

It is an arithmetic number, because the mean of its divisors is an integer number (17282560).

Almost surely, 268590033 is an apocalyptic number.

It is an amenable number.

68590033 is a deficient number, since it is larger than the sum of its proper divisors (540207).

68590033 is a wasteful number, since it uses less digits than its factorization.

68590033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 540206.

The product of its (nonzero) digits is 19440, while the sum is 34.

The square root of 68590033 is about 8281.9099850216. The cubic root of 68590033 is about 409.3426567536.

The spelling of 68590033 in words is "sixty-eight million, five hundred ninety thousand, thirty-three".

Divisors: 1 127 540079 68590033