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80008080 = 2435333367
BaseRepresentation
bin1001100010011…
…01001110010000
312120112211110020
410301031032100
5130440224310
611534503440
71661025465
oct461151620
9176484406
1080008080
1141187289
1222964b80
1313763c79
14a8a966c
157056170
hex4c4d390

80008080 has 40 divisors (see below), whose sum is σ = 248025792. Its totient is φ = 21335424.

The previous prime is 80008067. The next prime is 80008081. The reversal of 80008080 is 8080008.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a super Niven number, because it is divisible the sum of any subset of its (nonzero) digits.

80008080 is a modest number, since divided by 8080 gives 8000 as remainder.

It is a self number, because there is not a number n which added to its sum of digits gives 80008080.

It is not an unprimeable number, because it can be changed into a prime (80008081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 166444 + ... + 166923.

Almost surely, 280008080 is an apocalyptic number.

80008080 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

80008080 is an abundant number, since it is smaller than the sum of its proper divisors (168017712).

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

80008080 is a wasteful number, since it uses less digits than its factorization.

80008080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 333383 (or 333377 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 24.

The square root of 80008080 is about 8944.7235843261. The cubic root of 80008080 is about 430.9014440449.

Adding to 80008080 its reverse (8080008), we get a palindrome (88088088).

The spelling of 80008080 in words is "eighty million, eight thousand, eighty".

Divisors: 1 2 3 4 5 6 8 10 12 15 16 20 24 30 40 48 60 80 120 240 333367 666734 1000101 1333468 1666835 2000202 2666936 3333670 4000404 5000505 5333872 6667340 8000808 10001010 13334680 16001616 20002020 26669360 40004040 80008080