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1330064421 = 374710391297
BaseRepresentation
bin100111101000111…
…0010110000100101
310102200202021101020
41033101302300211
510210444030141
6335551521353
744650234560
oct11721626045
93380667336
101330064421
116228720a4
12311529259
1318273338a
14c89094d7
157bb7d266
hex4f472c25

1330064421 has 32 divisors (see below), whose sum is σ = 2073477120. Its totient is φ = 742576896.

The previous prime is 1330064413. The next prime is 1330064471. The reversal of 1330064421 is 1244600331.

It is not a de Polignac number, because 1330064421 - 23 = 1330064413 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1330064391 and 1330064400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1330064471) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1024845 + ... + 1026141.

It is an arithmetic number, because the mean of its divisors is an integer number (64796160).

Almost surely, 21330064421 is an apocalyptic number.

It is an amenable number.

1330064421 is a deficient number, since it is larger than the sum of its proper divisors (743412699).

1330064421 is a wasteful number, since it uses less digits than its factorization.

1330064421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2393.

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 1330064421 is about 36470.0482725208. The cubic root of 1330064421 is about 1099.7422043261.

Adding to 1330064421 its reverse (1244600331), we get a palindrome (2574664752).

The spelling of 1330064421 in words is "one billion, three hundred thirty million, sixty-four thousand, four hundred twenty-one".

Divisors: 1 3 7 21 47 141 329 987 1039 1297 3117 3891 7273 9079 21819 27237 48833 60959 146499 182877 341831 426713 1025493 1280139 1347583 4042749 9433081 28299243 63336401 190009203 443354807 1330064421