Search a number
-
+
80000008080 = 2435333333367
BaseRepresentation
bin100101010000001011…
…1110011111110010000
321122111100010111002020
41022200113303332100
52302320000224310
6100430153451440
75531321564106
oct1124027637620
9248440114066
1080000008080
1130a22a12163
1213607a10b80
13770c1386b5
143c2cb7bc76
1521334c1170
hex12a05f3f90

80000008080 has 40 divisors (see below), whose sum is σ = 248000025792. Its totient is φ = 21333335424.

The previous prime is 80000008063. The next prime is 80000008087. The reversal of 80000008080 is 8080000008.

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.

80000008080 is a modest number, since divided by 8080 gives 800 as remainder.

It is a self number, because there is not a number n which added to its sum of digits gives 80000008080.

It is not an unprimeable number, because it can be changed into a prime (80000008087) 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, 166666444 + ... + 166666923.

Almost surely, 280000008080 is an apocalyptic number.

80000008080 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

80000008080 is an abundant number, since it is smaller than the sum of its proper divisors (168000017712).

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

80000008080 is a wasteful number, since it uses less digits than its factorization.

80000008080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 333333383 (or 333333377 counting only the distinct ones).

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

Adding to 80000008080 its reverse (8080000008), we get a palindrome (88080008088).

The spelling of 80000008080 in words is "eighty billion, eight thousand, eighty".

Divisors: 1 2 3 4 5 6 8 10 12 15 16 20 24 30 40 48 60 80 120 240 333333367 666666734 1000000101 1333333468 1666666835 2000000202 2666666936 3333333670 4000000404 5000000505 5333333872 6666667340 8000000808 10000001010 13333334680 16000001616 20000002020 26666669360 40000004040 80000008080