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1310201 = 10491249
BaseRepresentation
bin100111111110111111001
32110120020222
410333313321
5313411301
644025425
714064554
oct4776771
92416228
101310201
11815412
12532275
1336b489
1426169b
hex13fdf9

1310201 has 4 divisors (see below), whose sum is σ = 1312500. Its totient is φ = 1307904.

The previous prime is 1310189. The next prime is 1310209. The reversal of 1310201 is 1020131.

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.

It can be written as a sum of positive squares in 2 ways, for example, as 900601 + 409600 = 949^2 + 640^2 .

It is a cyclic number.

It is not a de Polignac number, because 1310201 - 26 = 1310137 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1310209) 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, 425 + ... + 1673.

It is an arithmetic number, because the mean of its divisors is an integer number (328125).

21310201 is an apocalyptic number.

It is an amenable number.

1310201 is a deficient number, since it is larger than the sum of its proper divisors (2299).

1310201 is a wasteful number, since it uses less digits than its factorization.

1310201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2298.

The product of its (nonzero) digits is 6, while the sum is 8.

The square root of 1310201 is about 1144.6401181157. The cubic root of 1310201 is about 109.4240140593.

Adding to 1310201 its reverse (1020131), we get a palindrome (2330332).

The spelling of 1310201 in words is "one million, three hundred ten thousand, two hundred one".

Divisors: 1 1049 1249 1310201