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1330302231 = 3349270453
BaseRepresentation
bin100111101001010…
…1100110100010111
310102201012100121000
41033102230310113
510211024132411
6340000554343
744652245106
oct11722546427
93381170530
101330302231
11622a14835
123116229b3
131827b76ab
14c896c03d
157bbc8956
hex4f4acd17

1330302231 has 8 divisors (see below), whose sum is σ = 1970818160. Its totient is φ = 886868136.

The previous prime is 1330302187. The next prime is 1330302283. The reversal of 1330302231 is 1322030331.

1330302231 is a `hidden beast` number, since 1 + 330 + 302 + 2 + 31 = 666.

It is not a de Polignac number, because 1330302231 - 26 = 1330302167 is a prime.

It is a super-2 number, since 2×13303022312 = 3539408051607154722, 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 (1330303231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24635200 + ... + 24635253.

It is an arithmetic number, because the mean of its divisors is an integer number (246352270).

Almost surely, 21330302231 is an apocalyptic number.

1330302231 is a deficient number, since it is larger than the sum of its proper divisors (640515929).

1330302231 is an equidigital number, since it uses as much as digits as its factorization.

1330302231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49270462 (or 49270456 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 18.

The square root of 1330302231 is about 36473.3084734577. The cubic root of 1330302231 is about 1099.8077435346.

Adding to 1330302231 its reverse (1322030331), we get a palindrome (2652332562).

The spelling of 1330302231 in words is "one billion, three hundred thirty million, three hundred two thousand, two hundred thirty-one".

Divisors: 1 3 9 27 49270453 147811359 443434077 1330302231