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1330943492 = 221372428729
BaseRepresentation
bin100111101010100…
…1001011000000100
310102202101221020102
41033111021120010
510211210142432
6340022423232
744660555504
oct11725113004
93382357212
101330943492
116233125aa
12311891b18
13182980538
14c8a97a04
157bca3962
hex4f549604

1330943492 has 12 divisors (see below), whose sum is σ = 2346153180. Its totient is φ = 660614016.

The previous prime is 1330943489. The next prime is 1330943501. The reversal of 1330943492 is 2943490331.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 576672196 + 754271296 = 24014^2 + 27464^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1213817 + ... + 1214912.

It is an arithmetic number, because the mean of its divisors is an integer number (195512765).

Almost surely, 21330943492 is an apocalyptic number.

It is an amenable number.

1330943492 is a deficient number, since it is larger than the sum of its proper divisors (1015209688).

1330943492 is a wasteful number, since it uses less digits than its factorization.

1330943492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2428870 (or 2428868 counting only the distinct ones).

The product of its (nonzero) digits is 69984, while the sum is 38.

The square root of 1330943492 is about 36482.0982400958. The cubic root of 1330943492 is about 1099.9844328375.

The spelling of 1330943492 in words is "one billion, three hundred thirty million, nine hundred forty-three thousand, four hundred ninety-two".

Divisors: 1 2 4 137 274 548 2428729 4857458 9714916 332735873 665471746 1330943492