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80491220241 = 332038376649
BaseRepresentation
bin100101011110110100…
…1101000110100010001
321200202120102122111020
41022331221220310101
52304321223021431
6100551022110053
75546435040405
oct1127551506421
9250676378436
1080491220241
1131155217123
121372441b329
137789b34893
143c780c7105
1521616a0696
hex12bda68d11

80491220241 has 8 divisors (see below), whose sum is σ = 107355146400. Its totient is φ = 53644053792.

The previous prime is 80491220153. The next prime is 80491220263. The reversal of 80491220241 is 14202219408.

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

It is not a de Polignac number, because 80491220241 - 222 = 80487025937 is a prime.

It is not an unprimeable number, because it can be changed into a prime (80491220291) 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, 4178716 + ... + 4197933.

It is an arithmetic number, because the mean of its divisors is an integer number (13419393300).

Almost surely, 280491220241 is an apocalyptic number.

It is an amenable number.

80491220241 is a deficient number, since it is larger than the sum of its proper divisors (26863926159).

80491220241 is a wasteful number, since it uses less digits than its factorization.

80491220241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8379855.

The product of its (nonzero) digits is 9216, while the sum is 33.

Adding to 80491220241 its reverse (14202219408), we get a palindrome (94693439649).

The spelling of 80491220241 in words is "eighty billion, four hundred ninety-one million, two hundred twenty thousand, two hundred forty-one".

Divisors: 1 3 3203 9609 8376649 25129947 26830406747 80491220241