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1306384652 = 221719211539
BaseRepresentation
bin100110111011101…
…1101100100001100
310101001012012211202
41031313131210030
510133413302102
6333344205032
744242041416
oct11567354414
93331165752
101306384652
11610469141
12305609778
1317a862091
14c57039b6
1579a51e02
hex4dddd90c

1306384652 has 12 divisors (see below), whose sum is σ = 2420654040. Its totient is φ = 614769216.

The previous prime is 1306384627. The next prime is 1306384661. The reversal of 1306384652 is 2564836031.

It is a super-2 number, since 2×13063846522 = 3413281717962322208, which contains 22 as substring.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 9605702 + ... + 9605837.

It is an arithmetic number, because the mean of its divisors is an integer number (201721170).

Almost surely, 21306384652 is an apocalyptic number.

It is an amenable number.

1306384652 is a deficient number, since it is larger than the sum of its proper divisors (1114269388).

1306384652 is a wasteful number, since it uses less digits than its factorization.

1306384652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19211560 (or 19211558 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 38.

The square root of 1306384652 is about 36143.9435037186. The cubic root of 1306384652 is about 1093.1766746673.

The spelling of 1306384652 in words is "one billion, three hundred six million, three hundred eighty-four thousand, six hundred fifty-two".

Divisors: 1 2 4 17 34 68 19211539 38423078 76846156 326596163 653192326 1306384652