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613201 = 3716573
BaseRepresentation
bin10010101101101010001
31011011011011
42111231101
5124110301
621050521
75132521
oct2255521
91134134
10613201
11389786
12256a41
13186154
1411d681
15c1a51
hex95b51

613201 has 4 divisors (see below), whose sum is σ = 629812. Its totient is φ = 596592.

The previous prime is 613199. The next prime is 613213. The reversal of 613201 is 102316.

613201 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 490000 + 123201 = 700^2 + 351^2 .

It is a cyclic number.

It is not a de Polignac number, because 613201 - 21 = 613199 is a prime.

It is a Duffinian number.

613201 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (613231) 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, 8250 + ... + 8323.

It is an arithmetic number, because the mean of its divisors is an integer number (157453).

2613201 is an apocalyptic number.

It is an amenable number.

613201 is a deficient number, since it is larger than the sum of its proper divisors (16611).

613201 is a wasteful number, since it uses less digits than its factorization.

613201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16610.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 613201 is about 783.0715165296. The cubic root of 613201 is about 84.9573488444.

Adding to 613201 its reverse (102316), we get a palindrome (715517).

The spelling of 613201 in words is "six hundred thirteen thousand, two hundred one".

Divisors: 1 37 16573 613201