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1311130 = 25131113
BaseRepresentation
bin101000000000110011010
32110121112101
411000012122
5313424010
644034014
714100352
oct5000632
92417471
101311130
11816087
1253290a
1336ba22
14261b62
151ad73a
hex14019a

1311130 has 8 divisors (see below), whose sum is σ = 2360052. Its totient is φ = 524448.

The previous prime is 1311127. The next prime is 1311131. The reversal of 1311130 is 311131.

It can be written as a sum of positive squares in 2 ways, for example, as 1238769 + 72361 = 1113^2 + 269^2 .

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

It is a Harshad number since it is a multiple of its sum of digits (10), and also a Moran number because the ratio is a prime number: 131113 = 1311130 / (1 + 3 + 1 + 1 + 1 + 3 + 0).

It is not an unprimeable number, because it can be changed into a prime (1311131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 65547 + ... + 65566.

21311130 is an apocalyptic number.

1311130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1311130 is a deficient number, since it is larger than the sum of its proper divisors (1048922).

1311130 is a wasteful number, since it uses less digits than its factorization.

1311130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131120.

The product of its (nonzero) digits is 9, while the sum is 10.

The square root of 1311130 is about 1145.0458506104. The cubic root of 1311130 is about 109.4498703700.

Adding to 1311130 its reverse (311131), we get a palindrome (1622261).

Subtracting from 1311130 its reverse (311131), we obtain a palindrome (999999).

It can be divided in two parts, 1311 and 130, that added together give a palindrome (1441).

The spelling of 1311130 in words is "one million, three hundred eleven thousand, one hundred thirty".

Divisors: 1 2 5 10 131113 262226 655565 1311130