Search a number
-
+
12893896900985 = 510724100741871
BaseRepresentation
bin1011101110100001100000…
…1001010000000101111001
31200122122101211210122002112
42323220120021100011321
53142223200101312420
643231212514542105
72500360533214322
oct273503011200571
950578354718075
1012893896900985
1141212a8726011
121542b0bb97935
13726b739229a9
143280d45d9449
151755ee74b8c5
hexbba18250179

12893896900985 has 8 divisors (see below), whose sum is σ = 15617280733056. Its totient is φ = 10218714552880.

The previous prime is 12893896900967. The next prime is 12893896900987. The reversal of 12893896900985 is 58900969839821.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12893896900985 - 218 = 12893896638841 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12893896900987) 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, 12050370401 + ... + 12050371470.

It is an arithmetic number, because the mean of its divisors is an integer number (1952160091632).

Almost surely, 212893896900985 is an apocalyptic number.

It is an amenable number.

12893896900985 is a deficient number, since it is larger than the sum of its proper divisors (2723383832071).

12893896900985 is a wasteful number, since it uses less digits than its factorization.

12893896900985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24100741983.

The product of its (nonzero) digits is 604661760, while the sum is 77.

The spelling of 12893896900985 in words is "twelve trillion, eight hundred ninety-three billion, eight hundred ninety-six million, nine hundred thousand, nine hundred eighty-five".

Divisors: 1 5 107 535 24100741871 120503709355 2578779380197 12893896900985