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12993744688495 = 531112136888793
BaseRepresentation
bin1011110100010101011110…
…0010010101010101101111
31201000012010102000210001121
42331011113202111111233
53200342142120012440
643345124403321411
72510524051336534
oct275052742252557
951005112023047
1012993744688495
11415a68614866a
12155a336980267
137333c6a3a46c
1432cc87356d8b
15177ee541b34a
hexbd15789556f

12993744688495 has 16 divisors (see below), whose sum is σ = 15655528354752. Its totient is φ = 10353027720960.

The previous prime is 12993744688453. The next prime is 12993744688513. The reversal of 12993744688495 is 59488644739921.

It is not a de Polignac number, because 12993744688495 - 27 = 12993744688367 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1558182 + ... + 5330611.

It is an arithmetic number, because the mean of its divisors is an integer number (978470522172).

Almost surely, 212993744688495 is an apocalyptic number.

12993744688495 is a deficient number, since it is larger than the sum of its proper divisors (2661783666257).

12993744688495 is a wasteful number, since it uses less digits than its factorization.

12993744688495 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6890322.

The product of its digits is 3762339840, while the sum is 79.

The spelling of 12993744688495 in words is "twelve trillion, nine hundred ninety-three billion, seven hundred forty-four million, six hundred eighty-eight thousand, four hundred ninety-five".

Divisors: 1 5 311 1213 1555 6065 377243 1886215 6888793 34443965 2142414623 8356105909 10712073115 41780529545 2598748937699 12993744688495