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1330268387 = 7552134421
BaseRepresentation
bin100111101001010…
…0100100011100011
310102201010122011112
41033102210203203
510211022042022
6340000133535
744652044330
oct11722444343
93381118145
101330268387
116229a1368
123116072ab
131827a5176
14c895d987
157bbbd8e2
hex4f4a48e3

1330268387 has 8 divisors (see below), whose sum is σ = 1520626272. Its totient is φ = 1139990400.

The previous prime is 1330268383. The next prime is 1330268389. The reversal of 1330268387 is 7838620331.

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

It is a cyclic number.

It is not a de Polignac number, because 1330268387 - 22 = 1330268383 is a prime.

It is a super-2 number, since 2×13302683872 = 3539227962903163538, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1330268383) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21437 + ... + 55857.

It is an arithmetic number, because the mean of its divisors is an integer number (190078284).

Almost surely, 21330268387 is an apocalyptic number.

1330268387 is a deficient number, since it is larger than the sum of its proper divisors (190357885).

1330268387 is an equidigital number, since it uses as much as digits as its factorization.

1330268387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39949.

The product of its (nonzero) digits is 145152, while the sum is 41.

The square root of 1330268387 is about 36472.8445147894. The cubic root of 1330268387 is about 1099.7984167796.

The spelling of 1330268387 in words is "one billion, three hundred thirty million, two hundred sixty-eight thousand, three hundred eighty-seven".

Divisors: 1 7 5521 34421 38647 240947 190038341 1330268387