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1301601 = 3761981
BaseRepresentation
bin100111101110001100001
32110010110110
410331301201
5313122401
643521533
714030520
oct4756141
92403413
101301601
11809a04
125292a9
133675a2
1425c4b7
151aa9d6
hex13dc61

1301601 has 8 divisors (see below), whose sum is σ = 1983424. Its totient is φ = 743760.

The previous prime is 1301591. The next prime is 1301603. The reversal of 1301601 is 1061031.

Adding to 1301601 its reverse (1061031), we get a palindrome (2362632).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1301601 - 211 = 1299553 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1301603) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30970 + ... + 31011.

It is an arithmetic number, because the mean of its divisors is an integer number (247928).

21301601 is an apocalyptic number.

It is an amenable number.

1301601 is a deficient number, since it is larger than the sum of its proper divisors (681823).

1301601 is an equidigital number, since it uses as much as digits as its factorization.

1301601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61991.

The product of its (nonzero) digits is 18, while the sum is 12.

The square root of 1301601 is about 1140.8772940154. The cubic root of 1301601 is about 109.1840730035.

The spelling of 1301601 in words is "one million, three hundred one thousand, six hundred one".

Divisors: 1 3 7 21 61981 185943 433867 1301601