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8080808140 = 2253723346867
BaseRepresentation
bin1111000011010011…
…10101100011001100
3202212011110120211101
413201221311203030
5113022141330030
63413503432444
7404151510256
oct74151654314
922764416741
108080808140
113477450839
1216962b5724
139ba1c72a2
14569300cd6
1532465d7ca
hex1e1a758cc

8080808140 has 48 divisors (see below), whose sum is σ = 17503510752. Its totient is φ = 3131398656.

The previous prime is 8080808123. The next prime is 8080808147. The reversal of 8080808140 is 418080808.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a self number, because there is not a number n which added to its sum of digits gives 8080808140.

It is not an unprimeable number, because it can be changed into a prime (8080808147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 148987 + ... + 195853.

It is an arithmetic number, because the mean of its divisors is an integer number (364656474).

Almost surely, 28080808140 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8080808140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8751755376).

8080808140 is an abundant number, since it is smaller than the sum of its proper divisors (9422702612).

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

8080808140 is a wasteful number, since it uses less digits than its factorization.

8080808140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47146 (or 47144 counting only the distinct ones).

The product of its (nonzero) digits is 16384, while the sum is 37.

The square root of 8080808140 is about 89893.3153243332. The cubic root of 8080808140 is about 2006.7114645957.

Adding to 8080808140 its reverse (418080808), we get a palindrome (8498888948).

The spelling of 8080808140 in words is "eight billion, eighty million, eight hundred eight thousand, one hundred forty".

Divisors: 1 2 4 5 10 20 37 74 148 185 233 370 466 740 932 1165 2330 4660 8621 17242 34484 43105 46867 86210 93734 172420 187468 234335 468670 937340 1734079 3468158 6936316 8670395 10920011 17340790 21840022 34681580 43680044 54600055 109200110 218400220 404040407 808080814 1616161628 2020202035 4040404070 8080808140