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1302230101 = 2137609373
BaseRepresentation
bin100110110011110…
…0111010001010101
310100202101010212111
41031213213101111
510131332330401
6333115151021
744161526134
oct11547472125
93322333774
101302230101
11609090827
12304145471
13179a39073
14c4d4191b
15794d0e51
hex4d9e7455

1302230101 has 4 divisors (see below), whose sum is σ = 1302841612. Its totient is φ = 1301618592.

The previous prime is 1302230093. The next prime is 1302230119. The reversal of 1302230101 is 1010322031.

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 185667876 + 1116562225 = 13626^2 + 33415^2 .

It is a cyclic number.

It is not a de Polignac number, because 1302230101 - 23 = 1302230093 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1302230201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 302550 + ... + 306823.

It is an arithmetic number, because the mean of its divisors is an integer number (325710403).

Almost surely, 21302230101 is an apocalyptic number.

It is an amenable number.

1302230101 is a deficient number, since it is larger than the sum of its proper divisors (611511).

1302230101 is an equidigital number, since it uses as much as digits as its factorization.

1302230101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 611510.

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

The square root of 1302230101 is about 36086.4254394918. The cubic root of 1302230101 is about 1092.0166076562.

Adding to 1302230101 its reverse (1010322031), we get a palindrome (2312552132).

The spelling of 1302230101 in words is "one billion, three hundred two million, two hundred thirty thousand, one hundred one".

Divisors: 1 2137 609373 1302230101