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1301022001 = 1996537799
BaseRepresentation
bin100110110001100…
…0000010100110001
310100200002202200001
41031203000110301
510131030201001
6333033230001
744145335026
oct11543002461
93320082601
101301022001
116084360a4
12303862301
13179705206
14c4b0954d
1579343001
hex4d8c0531

1301022001 has 4 divisors (see below), whose sum is σ = 1307560000. Its totient is φ = 1294484004.

The previous prime is 1301021971. The next prime is 1301022031. The reversal of 1301022001 is 1002201031.

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.

It is an interprime number because it is at equal distance from previous prime (1301021971) and next prime (1301022031).

It is a cyclic number.

It is not a de Polignac number, because 1301022001 - 27 = 1301021873 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1301022031) 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, 3268701 + ... + 3269098.

It is an arithmetic number, because the mean of its divisors is an integer number (326890000).

Almost surely, 21301022001 is an apocalyptic number.

It is an amenable number.

1301022001 is a deficient number, since it is larger than the sum of its proper divisors (6537999).

1301022001 is an equidigital number, since it uses as much as digits as its factorization.

1301022001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6537998.

The product of its (nonzero) digits is 12, while the sum is 10.

The square root of 1301022001 is about 36069.6825741508. The cubic root of 1301022001 is about 1091.6788093308.

Adding to 1301022001 its reverse (1002201031), we get a palindrome (2303223032).

The spelling of 1301022001 in words is "one billion, three hundred one million, twenty-two thousand, one".

Divisors: 1 199 6537799 1301022001