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1285676676321 = 323397223720981
BaseRepresentation
bin10010101101011000010…
…011010011010011100001
311112220120000111012221120
4102231120103103103201
5132031031212120241
62422344241042453
7161613160302252
oct22553023232341
94486500435846
101285676676321
11456285a6a104
1218920a626429
139431481259b
144632718ab29
152369b727666
hex12b584d34e1

1285676676321 has 32 divisors (see below), whose sum is σ = 1794160412928. Its totient is φ = 817382142720.

The previous prime is 1285676676307. The next prime is 1285676676337. The reversal of 1285676676321 is 1236766765821.

It is not a de Polignac number, because 1285676676321 - 25 = 1285676676289 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1285676676391) 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, 61267651 + ... + 61288631.

It is an arithmetic number, because the mean of its divisors is an integer number (56067512904).

Almost surely, 21285676676321 is an apocalyptic number.

It is an amenable number.

1285676676321 is a deficient number, since it is larger than the sum of its proper divisors (508483736607).

1285676676321 is a wasteful number, since it uses less digits than its factorization.

1285676676321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23641.

The product of its digits is 30481920, while the sum is 60.

The spelling of 1285676676321 in words is "one trillion, two hundred eighty-five billion, six hundred seventy-six million, six hundred seventy-six thousand, three hundred twenty-one".

Divisors: 1 3 23 69 397 1191 2237 6711 9131 20981 27393 51451 62943 154353 482563 888089 1447689 2664267 8329457 20426047 24988371 46934497 61278141 140803491 191577511 574732533 1079493431 3238480293 18632995309 55898985927 428558892107 1285676676321