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1393201 = 1781953
BaseRepresentation
bin101010100001000110001
32121210010001
411110020301
5324040301
645510001
714561545
oct5241061
92553101
101393201
11871807
12572301
1339a1a4
14283a25
151c7c01
hex154231

1393201 has 4 divisors (see below), whose sum is σ = 1475172. Its totient is φ = 1311232.

The previous prime is 1393193. The next prime is 1393219. The reversal of 1393201 is 1023931.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1023931 = 1516781.

It can be written as a sum of positive squares in 2 ways, for example, as 720801 + 672400 = 849^2 + 820^2 .

It is a cyclic number.

It is not a de Polignac number, because 1393201 - 23 = 1393193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1393241) 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, 40960 + ... + 40993.

It is an arithmetic number, because the mean of its divisors is an integer number (368793).

21393201 is an apocalyptic number.

It is an amenable number.

1393201 is a deficient number, since it is larger than the sum of its proper divisors (81971).

1393201 is an equidigital number, since it uses as much as digits as its factorization.

1393201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81970.

The product of its (nonzero) digits is 162, while the sum is 19.

The square root of 1393201 is about 1180.3393579814. The cubic root of 1393201 is about 111.6875058259.

The spelling of 1393201 in words is "one million, three hundred ninety-three thousand, two hundred one".

Divisors: 1 17 81953 1393201