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1313322213 = 3762539153
BaseRepresentation
bin100111001000111…
…1011010011100101
310101112020200101110
41032101323103211
510142202302323
6334153015233
744355024510
oct11621732345
93345220343
101313322213
11614377465
123079b4519
1317c120a48
14c65cbd77
157a472793
hex4e47b4e5

1313322213 has 8 divisors (see below), whose sum is σ = 2001252928. Its totient is φ = 750469824.

The previous prime is 1313322167. The next prime is 1313322239. The reversal of 1313322213 is 3122233131.

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

It is not a de Polignac number, because 1313322213 - 212 = 1313318117 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 62539153 = 1313322213 / (1 + 3 + 1 + 3 + 3 + 2 + 2 + 2 + 1 + 3).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1313322213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1313322013) 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 7 ways as a sum of consecutive naturals, for example, 31269556 + ... + 31269597.

It is an arithmetic number, because the mean of its divisors is an integer number (250156616).

Almost surely, 21313322213 is an apocalyptic number.

It is an amenable number.

1313322213 is a deficient number, since it is larger than the sum of its proper divisors (687930715).

1313322213 is an equidigital number, since it uses as much as digits as its factorization.

1313322213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62539163.

The product of its digits is 648, while the sum is 21.

The square root of 1313322213 is about 36239.7877063318. The cubic root of 1313322213 is about 1095.1083656645.

Adding to 1313322213 its reverse (3122233131), we get a palindrome (4435555344).

The spelling of 1313322213 in words is "one billion, three hundred thirteen million, three hundred twenty-two thousand, two hundred thirteen".

Divisors: 1 3 7 21 62539153 187617459 437774071 1313322213