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12115047607 = 137983311457
BaseRepresentation
bin10110100100001110…
…01111010010110111
31011021022121011222221
423102013033102313
5144302423010412
65322055303211
7606136130335
oct132207172267
934238534887
1012115047607
1151576a0643
12242137ab07
1311b0c46530
1482d008b55
154ad8e8b07
hex2d21cf4b7

12115047607 has 32 divisors (see below), whose sum is σ = 13443655680. Its totient is φ = 10849662720.

The previous prime is 12115047589. The next prime is 12115047611. The reversal of 12115047607 is 70674051121.

It is not a de Polignac number, because 12115047607 - 27 = 12115047479 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12115047617) 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 31 ways as a sum of consecutive naturals, for example, 26509723 + ... + 26510179.

It is an arithmetic number, because the mean of its divisors is an integer number (420114240).

Almost surely, 212115047607 is an apocalyptic number.

12115047607 is a deficient number, since it is larger than the sum of its proper divisors (1328608073).

12115047607 is a wasteful number, since it uses less digits than its factorization.

12115047607 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 943.

The product of its (nonzero) digits is 11760, while the sum is 34.

Adding to 12115047607 its reverse (70674051121), we get a palindrome (82789098728).

The spelling of 12115047607 in words is "twelve billion, one hundred fifteen million, forty-seven thousand, six hundred seven".

Divisors: 1 13 79 83 311 457 1027 1079 4043 5941 6557 24569 25813 36103 37931 85241 142127 319397 335569 469339 493103 1847651 2039227 2996549 11228033 11796541 26509951 38955137 145964429 153355033 931926739 12115047607