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1310311201 = 11677112213
BaseRepresentation
bin100111000011001…
…1100001100100001
310101022120201001111
41032012130030201
510140414424301
6334004303321
744320314163
oct11606341441
93338521044
101310311201
11612700221
123069a1b41
1317b608394
14c6046933
157a07a551
hex4e19c321

1310311201 has 4 divisors (see below), whose sum is σ = 1310435092. Its totient is φ = 1310187312.

The previous prime is 1310311181. The next prime is 1310311217. The reversal of 1310311201 is 1021130131.

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 805140625 + 505170576 = 28375^2 + 22476^2 .

It is a cyclic number.

It is not a de Polignac number, because 1310311201 - 215 = 1310278433 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1310351201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44430 + ... + 67783.

It is an arithmetic number, because the mean of its divisors is an integer number (327608773).

Almost surely, 21310311201 is an apocalyptic number.

It is an amenable number.

1310311201 is a deficient number, since it is larger than the sum of its proper divisors (123891).

1310311201 is a wasteful number, since it uses less digits than its factorization.

1310311201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123890.

The product of its (nonzero) digits is 18, while the sum is 13.

The square root of 1310311201 is about 36198.2209645723. The cubic root of 1310311201 is about 1094.2708185776.

Adding to 1310311201 its reverse (1021130131), we get a palindrome (2331441332).

The spelling of 1310311201 in words is "one billion, three hundred ten million, three hundred eleven thousand, two hundred one".

Divisors: 1 11677 112213 1310311201