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1330442111 = 1970023269
BaseRepresentation
bin100111101001100…
…1110111101111111
310102201110110110202
41033103032331333
510211043121421
6340003554115
744653366655
oct11723167577
93381413422
101330442111
11622aaa939
1231168b93b
1318283626b
14c89a6dd5
157bc0510b
hex4f4cef7f

1330442111 has 4 divisors (see below), whose sum is σ = 1400465400. Its totient is φ = 1260418824.

The previous prime is 1330442101. The next prime is 1330442177. The reversal of 1330442111 is 1112440331.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1112440331 = 4127132691.

It is a cyclic number.

It is not a de Polignac number, because 1330442111 - 210 = 1330441087 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1330442101) 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, 35011616 + ... + 35011653.

It is an arithmetic number, because the mean of its divisors is an integer number (350116350).

Almost surely, 21330442111 is an apocalyptic number.

1330442111 is a deficient number, since it is larger than the sum of its proper divisors (70023289).

1330442111 is an equidigital number, since it uses as much as digits as its factorization.

1330442111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70023288.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 1330442111 is about 36475.2259897043. The cubic root of 1330442111 is about 1099.8462900924.

Adding to 1330442111 its reverse (1112440331), we get a palindrome (2442882442).

The spelling of 1330442111 in words is "one billion, three hundred thirty million, four hundred forty-two thousand, one hundred eleven".

Divisors: 1 19 70023269 1330442111