Search a number
-
+
80081065880075 = 5213828729733713
BaseRepresentation
bin10010001101010101010011…
…011111000010101000001011
3101111112200020011121102012202
4102031111103133002220023
540444022010331130300
6442152422255430415
722603444315540121
oct2215252337025013
9344480204542182
1080081065880075
1123575209a86747
128b942b6b2540b
13358b7c5a5c6b0
1415abd31109911
1593d15b79dad5
hex48d5537c2a0b

80081065880075 has 24 divisors (see below), whose sum is σ = 106951931388288. Its totient is φ = 59129649031680.

The previous prime is 80081065880047. The next prime is 80081065880077. The reversal of 80081065880075 is 57008856018008.

It is a happy number.

It is not a de Polignac number, because 80081065880075 - 226 = 80080998771211 is a prime.

It is a super-2 number, since 2×800810658800752 (a number of 29 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 80081065880075.

It is not an unprimeable number, because it can be changed into a prime (80081065880077) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12173582 + ... + 17560131.

It is an arithmetic number, because the mean of its divisors is an integer number (4456330474512).

Almost surely, 280081065880075 is an apocalyptic number.

80081065880075 is a deficient number, since it is larger than the sum of its proper divisors (26870865508213).

80081065880075 is a wasteful number, since it uses less digits than its factorization.

80081065880075 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29742023 (or 29742018 counting only the distinct ones).

The product of its (nonzero) digits is 4300800, while the sum is 56.

The spelling of 80081065880075 in words is "eighty trillion, eighty-one billion, sixty-five million, eight hundred eighty thousand, seventy-five".

Divisors: 1 5 13 25 65 325 8287 41435 107731 207175 538655 2693275 29733713 148668565 386538269 743342825 1932691345 9663456725 246403279631 1232016398155 3203242635203 6160081990775 16016213176015 80081065880075