Search a number
-
+
80094575781 = 3211809036119
BaseRepresentation
bin100101010011000000…
…0100011110010100101
321122201221002000120200
41022212000203302211
52303013202411111
6100443412421113
75533550442513
oct1124600436245
9248657060520
1080094575781
1130a71333290
1213633617799
1377258c970c
143c3b5574b3
15213b951256
hex12a6023ca5

80094575781 has 12 divisors (see below), whose sum is σ = 126209634720. Its totient is φ = 48542167080.

The previous prime is 80094575773. The next prime is 80094575801. The reversal of 80094575781 is 18757549008.

It is not a de Polignac number, because 80094575781 - 23 = 80094575773 is a prime.

It is a super-2 number, since 2×800945757812 (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80094570781) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 404517961 + ... + 404518158.

It is an arithmetic number, because the mean of its divisors is an integer number (10517469560).

Almost surely, 280094575781 is an apocalyptic number.

It is an amenable number.

80094575781 is a deficient number, since it is larger than the sum of its proper divisors (46115058939).

80094575781 is a wasteful number, since it uses less digits than its factorization.

80094575781 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 809036136 (or 809036133 counting only the distinct ones).

The product of its (nonzero) digits is 2822400, while the sum is 54.

The spelling of 80094575781 in words is "eighty billion, ninety-four million, five hundred seventy-five thousand, seven hundred eighty-one".

Divisors: 1 3 9 11 33 99 809036119 2427108357 7281325071 8899397309 26698191927 80094575781