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606789097 = 2011330169
BaseRepresentation
bin100100001010101…
…101110111101001
31120021210002011021
4210022231313221
52220314222342
6140113332441
721015423265
oct4412556751
91507702137
10606789097
112915756a2
1214b267121
1398934b05
145a8330a5
153840e567
hex242adde9

606789097 has 4 divisors (see below), whose sum is σ = 606839380. Its totient is φ = 606738816.

The previous prime is 606789089. The next prime is 606789119. The reversal of 606789097 is 790987606.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 790987606 = 2395493803.

It can be written as a sum of positive squares in 2 ways, for example, as 169937296 + 436851801 = 13036^2 + 20901^2 .

It is a 3-Lehmer number, since φ(606789097) divides (606789097-1)3.

It is a cyclic number.

It is not a de Polignac number, because 606789097 - 23 = 606789089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (606789017) 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, 5029 + ... + 35197.

It is an arithmetic number, because the mean of its divisors is an integer number (151709845).

Almost surely, 2606789097 is an apocalyptic number.

606789097 is the 20113-rd pentagonal number.

It is an amenable number.

606789097 is a deficient number, since it is larger than the sum of its proper divisors (50283).

606789097 is a wasteful number, since it uses less digits than its factorization.

606789097 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50282.

The product of its (nonzero) digits is 1143072, while the sum is 52.

The square root of 606789097 is about 24633.0894733081. The cubic root of 606789097 is about 846.6019339154.

The spelling of 606789097 in words is "six hundred six million, seven hundred eighty-nine thousand, ninety-seven".

Divisors: 1 20113 30169 606789097