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80502901542 = 23472192321009
BaseRepresentation
bin100101011111001011…
…0001100101100100110
321200210101102010020000
41022332112030230212
52304332220322132
6100552120322130
75546636241600
oct1127626145446
9250711363200
1080502901542
1131160875498
1213728313346
13778c3947ab
143c79888170
15216270b87c
hex12be58cb26

80502901542 has 360 divisors, whose sum is σ = 231130884600. Its totient is φ = 20822199552.

The previous prime is 80502901513. The next prime is 80502901559. The reversal of 80502901542 is 24510920508.

It is a junction number, because it is equal to n+sod(n) for n = 80502901497 and 80502901506.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 179 ways as a sum of consecutive naturals, for example, 79784334 + ... + 79785342.

It is an arithmetic number, because the mean of its divisors is an integer number (642030235).

Almost surely, 280502901542 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 80502901542, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (115565442300).

80502901542 is an abundant number, since it is smaller than the sum of its proper divisors (150627983058).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

80502901542 is a wasteful number, since it uses less digits than its factorization.

80502901542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1102 (or 1063 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 36.

The spelling of 80502901542 in words is "eighty billion, five hundred two million, nine hundred one thousand, five hundred forty-two".