Search a number
-
+
80808129312 = 253841751347
BaseRepresentation
bin100101101000010001…
…0100011001100100000
321201120122202022000020
41023100202203030200
52310443340114222
6101042302353440
75560333523511
oct1132042431440
9251518668006
1080808129312
11312a809a649
12137b258b880
13780a6a2c41
143ca821ca08
15217e3ee65c
hex12d08a3320

80808129312 has 24 divisors (see below), whose sum is σ = 212121339696. Its totient is φ = 26936043072.

The previous prime is 80808129287. The next prime is 80808129323. The reversal of 80808129312 is 21392180808.

It is a tau number, because it is divible by the number of its divisors (24).

It is a super-3 number, since 3×808081293123 (a number of 34 digits) contains 333 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 420875578 + ... + 420875769.

It is an arithmetic number, because the mean of its divisors is an integer number (8838389154).

Almost surely, 280808129312 is an apocalyptic number.

It is an amenable number.

80808129312 is an abundant number, since it is smaller than the sum of its proper divisors (131313210384).

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

80808129312 is a wasteful number, since it uses less digits than its factorization.

80808129312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 841751360 (or 841751352 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 42.

The spelling of 80808129312 in words is "eighty billion, eight hundred eight million, one hundred twenty-nine thousand, three hundred twelve".

Divisors: 1 2 3 4 6 8 12 16 24 32 48 96 841751347 1683502694 2525254041 3367005388 5050508082 6734010776 10101016164 13468021552 20202032328 26936043104 40404064656 80808129312