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1330331 = 10712433
BaseRepresentation
bin101000100110010011011
32111120212112
411010302123
5320032311
644302535
714210342
oct5046233
92446775
101330331
11829552
12541a4b
133776a2
14268b59
151b428b
hex144c9b

1330331 has 4 divisors (see below), whose sum is σ = 1342872. Its totient is φ = 1317792.

The previous prime is 1330321. The next prime is 1330337.

1330331 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-1330331 is a prime.

It is a super-2 number, since 2×13303312 = 3539561139122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1330337) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6110 + ... + 6323.

It is an arithmetic number, because the mean of its divisors is an integer number (335718).

21330331 is an apocalyptic number.

1330331 is a deficient number, since it is larger than the sum of its proper divisors (12541).

1330331 is a wasteful number, since it uses less digits than its factorization.

1330331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12540.

The product of its (nonzero) digits is 81, while the sum is 14.

The square root of 1330331 is about 1153.3997572394. The cubic root of 1330331 is about 109.9815671593.

It can be divided in two parts, 1330 and 331, that added together give a palindrome (1661).

The spelling of 1330331 in words is "one million, three hundred thirty thousand, three hundred thirty-one".

Divisors: 1 107 12433 1330331