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1313311001 = 31223189977
BaseRepresentation
bin100111001000111…
…1000100100011001
310101112020010000012
41032101320210121
510142201423001
6334152451305
744354650022
oct11621704431
93345203005
101313311001
11614369aa2
123079a9b35
1317c118902
14c65c7c49
157a46e2bb
hex4e478919

1313311001 has 8 divisors (see below), whose sum is σ = 1361762304. Its totient is φ = 1265240160.

The previous prime is 1313310991. The next prime is 1313311003. The reversal of 1313311001 is 1001133131.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-1313311001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1313311003) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 88076 + ... + 101901.

It is an arithmetic number, because the mean of its divisors is an integer number (170220288).

Almost surely, 21313311001 is an apocalyptic number.

It is an amenable number.

1313311001 is a deficient number, since it is larger than the sum of its proper divisors (48451303).

1313311001 is a wasteful number, since it uses less digits than its factorization.

1313311001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190231.

The product of its (nonzero) digits is 27, while the sum is 14.

The square root of 1313311001 is about 36239.6330141463. The cubic root of 1313311001 is about 1095.1052492955.

Adding to 1313311001 its reverse (1001133131), we get a palindrome (2314444132).

The spelling of 1313311001 in words is "one billion, three hundred thirteen million, three hundred eleven thousand, one".

Divisors: 1 31 223 6913 189977 5889287 42364871 1313311001