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1311030 = 232572081
BaseRepresentation
bin101000000000100110110
32110121101200
411000010312
5313423110
644033330
714100150
oct5000466
92417350
101311030
11815aa6
12532846
1336b976
hex140136

1311030 has 48 divisors (see below), whose sum is σ = 3897504. Its totient is φ = 299520.

The previous prime is 1311029. The next prime is 1311031. The reversal of 1311030 is 301131.

Adding to 1311030 its reverse (301131), we get a palindrome (1612161).

1311030 = 5712 + 5722 + ... + 5742.

It is an interprime number because it is at equal distance from previous prime (1311029) and next prime (1311031).

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1311031) 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 23 ways as a sum of consecutive naturals, for example, 411 + ... + 1670.

It is an arithmetic number, because the mean of its divisors is an integer number (81198).

21311030 is an apocalyptic number.

1311030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1311030 is an abundant number, since it is smaller than the sum of its proper divisors (2586474).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1311030 is a wasteful number, since it uses less digits than its factorization.

1311030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2101 (or 2098 counting only the distinct ones).

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

The square root of 1311030 is about 1145.0021834040. The cubic root of 1311030 is about 109.4470877155.

The spelling of 1311030 in words is "one million, three hundred eleven thousand, thirty".