Search a number
-
+
1348341680181 = 3449447226727
BaseRepresentation
bin10011100111101111011…
…011010100100000110101
311202220022020202020201110
4103213233123110200311
5134042400432231211
62511230345345233
7166262110115436
oct23475733244065
94686266666643
101348341680181
1147a9127aaaa1
12199398a98219
139a1c0422122
144938d96348d
1525117deaea6
hex139ef6d4835

1348341680181 has 4 divisors (see below), whose sum is σ = 1797788906912. Its totient is φ = 898894453452.

The previous prime is 1348341680159. The next prime is 1348341680183. The reversal of 1348341680181 is 1810861438431.

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 not a de Polignac number, because 1348341680181 - 25 = 1348341680149 is a prime.

It is a super-2 number, since 2×13483416801812 (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1348341680181.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1348341680183) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 224723613361 + ... + 224723613366.

It is an arithmetic number, because the mean of its divisors is an integer number (449447226728).

Almost surely, 21348341680181 is an apocalyptic number.

It is an amenable number.

1348341680181 is a deficient number, since it is larger than the sum of its proper divisors (449447226731).

1348341680181 is an equidigital number, since it uses as much as digits as its factorization.

1348341680181 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 449447226730.

The product of its (nonzero) digits is 442368, while the sum is 48.

The spelling of 1348341680181 in words is "one trillion, three hundred forty-eight billion, three hundred forty-one million, six hundred eighty thousand, one hundred eighty-one".

Divisors: 1 3 449447226727 1348341680181