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1306968568 = 231771135353
BaseRepresentation
bin100110111100110…
…1100000111111000
310101002021212211021
41031321230013320
510134040443233
6333404512224
744250022663
oct11571540770
93332255737
101306968568
11610827914
1230584b674
1317aa07aa9
14c58166da
1579b19e2d
hex4de6c1f8

1306968568 has 32 divisors (see below), whose sum is σ = 2631281760. Its totient is φ = 606376960.

The previous prime is 1306968563. The next prime is 1306968569. The reversal of 1306968568 is 8658696031.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1306968563) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 58021 + ... + 77332.

It is an arithmetic number, because the mean of its divisors is an integer number (82227555).

Almost surely, 21306968568 is an apocalyptic number.

It is an amenable number.

1306968568 is an abundant number, since it is smaller than the sum of its proper divisors (1324313192).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1306968568 is a wasteful number, since it uses less digits than its factorization.

1306968568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135447 (or 135443 counting only the distinct ones).

The product of its (nonzero) digits is 1866240, while the sum is 52.

The square root of 1306968568 is about 36152.0202478368. The cubic root of 1306968568 is about 1093.3395231489.

The spelling of 1306968568 in words is "one billion, three hundred six million, nine hundred sixty-eight thousand, five hundred sixty-eight".

Divisors: 1 2 4 8 17 34 68 71 136 142 284 568 1207 2414 4828 9656 135353 270706 541412 1082824 2301001 4602002 9204004 9610063 18408008 19220126 38440252 76880504 163371071 326742142 653484284 1306968568