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1306130542 = 27982110069
BaseRepresentation
bin100110111011001…
…1111100001101110
310101000201022021021
41031312133201232
510133332134132
6333334524354
744236632523
oct11566374156
93330638237
101306130542
11610305232
123055066ba
1317a7a3512
14c567914a
1579a01997
hex4dd9f86e

1306130542 has 16 divisors (see below), whose sum is σ = 1986609600. Its totient is φ = 643949280.

The previous prime is 1306130531. The next prime is 1306130549. The reversal of 1306130542 is 2450316031.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1306130549) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 124684 + ... + 134752.

It is an arithmetic number, because the mean of its divisors is an integer number (124163100).

Almost surely, 21306130542 is an apocalyptic number.

1306130542 is a deficient number, since it is larger than the sum of its proper divisors (680479058).

1306130542 is a wasteful number, since it uses less digits than its factorization.

1306130542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10971.

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 1306130542 is about 36140.4280826888. The cubic root of 1306130542 is about 1093.1057907110.

Adding to 1306130542 its reverse (2450316031), we get a palindrome (3756446573).

The spelling of 1306130542 in words is "one billion, three hundred six million, one hundred thirty thousand, five hundred forty-two".

Divisors: 1 2 79 158 821 1642 10069 20138 64859 129718 795451 1590902 8266649 16533298 653065271 1306130542