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1330303025 = 5289597889
BaseRepresentation
bin100111101001010…
…1101000000110001
310102201012101200102
41033102231000301
510211024144100
6340001002145
744652250322
oct11722550061
93381171612
101330303025
11622a15397
12311623355
131827b7b6c
14c896c449
157bbc8cd5
hex4f4ad031

1330303025 has 12 divisors (see below), whose sum is σ = 1668113100. Its totient is φ = 1052282880.

The previous prime is 1330303019. The next prime is 1330303027. The reversal of 1330303025 is 5203030331.

It can be written as a sum of positive squares in 6 ways, for example, as 180821809 + 1149481216 = 13447^2 + 33904^2 .

It is not a de Polignac number, because 1330303025 - 224 = 1313525809 is a prime.

It is a super-2 number, since 2×13303030252 = 3539412276648301250, which contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1330302988 and 1330303006.

It is not an unprimeable number, because it can be changed into a prime (1330303027) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 296720 + ... + 301169.

It is an arithmetic number, because the mean of its divisors is an integer number (139009425).

Almost surely, 21330303025 is an apocalyptic number.

It is an amenable number.

1330303025 is a deficient number, since it is larger than the sum of its proper divisors (337810075).

1330303025 is an equidigital number, since it uses as much as digits as its factorization.

1330303025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 597988 (or 597983 counting only the distinct ones).

The product of its (nonzero) digits is 810, while the sum is 20.

The square root of 1330303025 is about 36473.3193581281. The cubic root of 1330303025 is about 1099.8079623438.

Adding to 1330303025 its reverse (5203030331), we get a palindrome (6533333356).

The spelling of 1330303025 in words is "one billion, three hundred thirty million, three hundred three thousand, twenty-five".

Divisors: 1 5 25 89 445 2225 597889 2989445 14947225 53212121 266060605 1330303025