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2080008080 = 24545756893
BaseRepresentation
bin111101111111010…
…0110011110010000
312100221220100200022
41323332212132100
513224440224310
6542221443012
7102354530333
oct17376463620
95327810608
102080008080
11978123947
124a0710468
13271c0b317
1415a36461a
15c2918a55
hex7bfa6790

2080008080 has 40 divisors (see below), whose sum is σ = 4846686072. Its totient is φ = 830168064.

The previous prime is 2080008067. The next prime is 2080008097. The reversal of 2080008080 is 808000802.

It can be written as a sum of positive squares in 4 ways, for example, as 215150224 + 1864857856 = 14668^2 + 43184^2 .

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

It is a super-2 number, since 2×20800080802 = 8652867225730572800, which contains 22 as substring.

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 7 ways as a sum of consecutive naturals, for example, 8114 + ... + 65006.

Almost surely, 22080008080 is an apocalyptic number.

2080008080 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2080008080 is an abundant number, since it is smaller than the sum of its proper divisors (2766677992).

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

2080008080 is a wasteful number, since it uses less digits than its factorization.

2080008080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57363 (or 57357 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 26.

The square root of 2080008080 is about 45607.1055867394. The cubic root of 2080008080 is about 1276.5025126748.

Adding to 2080008080 its reverse (808000802), we get a palindrome (2888008882).

The spelling of 2080008080 in words is "two billion, eighty million, eight thousand, eighty".

Divisors: 1 2 4 5 8 10 16 20 40 80 457 914 1828 2285 3656 4570 7312 9140 18280 36560 56893 113786 227572 284465 455144 568930 910288 1137860 2275720 4551440 26000101 52000202 104000404 130000505 208000808 260001010 416001616 520002020 1040004040 2080008080