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1330055237 = 7190007891
BaseRepresentation
bin100111101000111…
…0000100001000101
310102200201210210002
41033101300201011
510210443231422
6335551411045
744650166030
oct11721604105
93380653702
101330055237
11622866205
12311523a85
1318272c144
14c8906017
157bb7a692
hex4f470845

1330055237 has 4 divisors (see below), whose sum is σ = 1520063136. Its totient is φ = 1140047340.

The previous prime is 1330055227. The next prime is 1330055267. The reversal of 1330055237 is 7325500331.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1330055237 - 212 = 1330051141 is a prime.

It is a super-2 number, since 2×13300552372 = 3538093866942252338, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1330055227) 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, 95003939 + ... + 95003952.

It is an arithmetic number, because the mean of its divisors is an integer number (380015784).

Almost surely, 21330055237 is an apocalyptic number.

It is an amenable number.

1330055237 is a deficient number, since it is larger than the sum of its proper divisors (190007899).

1330055237 is an equidigital number, since it uses as much as digits as its factorization.

1330055237 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190007898.

The product of its (nonzero) digits is 9450, while the sum is 29.

The square root of 1330055237 is about 36469.9223607619. The cubic root of 1330055237 is about 1099.7396731064.

Adding to 1330055237 its reverse (7325500331), we get a palindrome (8655555568).

The spelling of 1330055237 in words is "one billion, three hundred thirty million, fifty-five thousand, two hundred thirty-seven".

Divisors: 1 7 190007891 1330055237