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609061 = 751811
BaseRepresentation
bin10010100101100100101
31010221110211
42110230211
5123442221
621015421
75114455
oct2245445
91127424
10609061
11386662
12254571
131842bb
1411bd65
15c06e1
hex94b25

609061 has 4 divisors (see below), whose sum is σ = 610624. Its totient is φ = 607500.

The previous prime is 609047. The next prime is 609067. The reversal of 609061 is 160906.

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, and also a brilliant number, because the two primes have the same length.

It is a 5-Lehmer number, since φ(609061) divides (609061-1)5.

It is a cyclic number.

It is not a de Polignac number, because 609061 - 215 = 576293 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 (609067) 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, 346 + ... + 1156.

It is an arithmetic number, because the mean of its divisors is an integer number (152656).

2609061 is an apocalyptic number.

It is an amenable number.

609061 is a deficient number, since it is larger than the sum of its proper divisors (1563).

609061 is an equidigital number, since it uses as much as digits as its factorization.

609061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1562.

The product of its (nonzero) digits is 324, while the sum is 22.

The square root of 609061 is about 780.4236029234. The cubic root of 609061 is about 84.7657216536.

Adding to 609061 its reverse (160906), we get a palindrome (769967).

The spelling of 609061 in words is "six hundred nine thousand, sixty-one".

Divisors: 1 751 811 609061