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80841311146 = 250979411897
BaseRepresentation
bin100101101001010000…
…1001000001110101010
321201122222012002221001
41023102201020032222
52311030333424041
6101045445505214
75561215543531
oct1132241101652
9251588162831
1080841311146
11313148a3652
121380171220a
13781452026b
143cac7b9318
1521822a6131
hex12d28483aa

80841311146 has 8 divisors (see below), whose sum is σ = 121500203940. Its totient is φ = 40341243168.

The previous prime is 80841311143. The next prime is 80841311147. The reversal of 80841311146 is 64111314808.

It can be written as a sum of positive squares in 2 ways, for example, as 59541368121 + 21299943025 = 244011^2 + 145945^2 .

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

It is not an unprimeable number, because it can be changed into a prime (80841311143) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39704931 + ... + 39706966.

Almost surely, 280841311146 is an apocalyptic number.

80841311146 is a deficient number, since it is larger than the sum of its proper divisors (40658892794).

80841311146 is a wasteful number, since it uses less digits than its factorization.

80841311146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79412408.

The product of its (nonzero) digits is 18432, while the sum is 37.

The spelling of 80841311146 in words is "eighty billion, eight hundred forty-one million, three hundred eleven thousand, one hundred forty-six".

Divisors: 1 2 509 1018 79411897 158823794 40420655573 80841311146