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1330238429 = 13797128389
BaseRepresentation
bin100111101001001…
…1101001111011101
310102201002010001222
41033102131033131
510211020112204
6335555343125
744651561102
oct11722351735
93381063058
101330238429
11622980903
123115b1aa5
13182794640
14c8952aa9
157bbb4abe
hex4f49d3dd

1330238429 has 8 divisors (see below), whose sum is σ = 1434373080. Its totient is φ = 1226362176.

The previous prime is 1330238417. The next prime is 1330238443. The reversal of 1330238429 is 9248320331.

It can be written as a sum of positive squares in 4 ways, for example, as 352425529 + 977812900 = 18773^2 + 31270^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2k-1330238429 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 (1330238029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53834 + ... + 74555.

It is an arithmetic number, because the mean of its divisors is an integer number (179296635).

Almost surely, 21330238429 is an apocalyptic number.

It is an amenable number.

1330238429 is a deficient number, since it is larger than the sum of its proper divisors (104134651).

1330238429 is a wasteful number, since it uses less digits than its factorization.

1330238429 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129199.

The product of its (nonzero) digits is 31104, while the sum is 35.

The square root of 1330238429 is about 36472.4338233686. The cubic root of 1330238429 is about 1099.7901607995.

The spelling of 1330238429 in words is "one billion, three hundred thirty million, two hundred thirty-eight thousand, four hundred twenty-nine".

Divisors: 1 13 797 10361 128389 1669057 102326033 1330238429