Search a number
-
+
12808632345601 = 14518827451651
BaseRepresentation
bin1011101001100011110111…
…1110110010010000000001
31200100111022121111102202211
42322120331332302100001
53134324034340024401
643124112055342121
72461251564361621
oct272307576622001
950314277442684
1012808632345601
114099124047614
12152a495081941
1371bb05bc1761
14323d265b4881
151732adeb9951
hexba63dfb2401

12808632345601 has 4 divisors (see below), whose sum is σ = 12817459798704. Its totient is φ = 12799804892500.

The previous prime is 12808632345559. The next prime is 12808632345659. The reversal of 12808632345601 is 10654323680821.

12808632345601 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12808632345601 - 211 = 12808632343553 is a prime.

It is a super-2 number, since 2×128086323456012 (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12808632343601) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4413724375 + ... + 4413727276.

It is an arithmetic number, because the mean of its divisors is an integer number (3204364949676).

Almost surely, 212808632345601 is an apocalyptic number.

It is an amenable number.

12808632345601 is a deficient number, since it is larger than the sum of its proper divisors (8827453103).

12808632345601 is an equidigital number, since it uses as much as digits as its factorization.

12808632345601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8827453102.

The product of its (nonzero) digits is 1658880, while the sum is 49.

The spelling of 12808632345601 in words is "twelve trillion, eight hundred eight billion, six hundred thirty-two million, three hundred forty-five thousand, six hundred one".

Divisors: 1 1451 8827451651 12808632345601