Search a number
-
+
806681814061 = 7122949614479
BaseRepresentation
bin10111011110100011111…
…10111010010000101101
32212010012001011001201111
423233101332322100231
5101204041021022221
61414330130512021
7112165220166334
oct13572176722055
92763161131644
10806681814061
11291125943582
12110410135611
135b0ba387cc6
142b087936d1b
1515eb4c08be1
hexbbd1fba42d

806681814061 has 8 divisors (see below), whose sum is σ = 821615788800. Its totient is φ = 791847068880.

The previous prime is 806681814053. The next prime is 806681814151. The reversal of 806681814061 is 160418186608.

It is a happy number.

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 806681814061 - 23 = 806681814053 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 806681813996 and 806681814014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (806681814011) 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, 24790981 + ... + 24823498.

It is an arithmetic number, because the mean of its divisors is an integer number (102701973600).

Almost surely, 2806681814061 is an apocalyptic number.

It is an amenable number.

806681814061 is a deficient number, since it is larger than the sum of its proper divisors (14933974739).

806681814061 is a wasteful number, since it uses less digits than its factorization.

806681814061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49614779.

The product of its (nonzero) digits is 442368, while the sum is 49.

The spelling of 806681814061 in words is "eight hundred six billion, six hundred eighty-one million, eight hundred fourteen thousand, sixty-one".

Divisors: 1 71 229 16259 49614479 3522628009 11361715691 806681814061