Search a number
-
+
81883473408001 = 175771238346011
BaseRepresentation
bin10010100111100011111011…
…010110000111000000000001
3101201220222120001100200010101
4102213203323112013000001
541213034323143024001
6450052425352202401
723150612543000056
oct2247437326070001
9351828501320111
1081883473408001
11240aa64a04a731
129225695699401
13368c7699c7b25
14163127753702d
1596ee9c868a01
hex4a78fb587001

81883473408001 has 8 divisors (see below), whose sum is σ = 86700308930784. Its totient is φ = 77066655731520.

The previous prime is 81883473407987. The next prime is 81883473408007. The reversal of 81883473408001 is 10080437438818.

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

It is a cyclic number.

It is not a de Polignac number, because 81883473408001 - 219 = 81883472883713 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (81883473408007) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5638086 + ... + 13984096.

It is an arithmetic number, because the mean of its divisors is an integer number (10837538616348).

Almost surely, 281883473408001 is an apocalyptic number.

It is an amenable number.

81883473408001 is a deficient number, since it is larger than the sum of its proper divisors (4816835522783).

81883473408001 is a wasteful number, since it uses less digits than its factorization.

81883473408001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8923151.

The product of its (nonzero) digits is 4128768, while the sum is 55.

The spelling of 81883473408001 in words is "eighty-one trillion, eight hundred eighty-three billion, four hundred seventy-three million, four hundred eight thousand, one".

Divisors: 1 17 577123 8346011 9811091 141882187 4816674906353 81883473408001