Base | Representation |
---|---|
bin | 110100000010000111… |
… | …011100010001010000 |
3 | 12100012200102010200012 |
4 | 310002013130101100 |
5 | 1403410220030310 |
6 | 41355533414052 |
7 | 4015340562563 |
oct | 640207342120 |
9 | 170180363605 |
10 | 55870080080 |
11 | 21770227101 |
12 | a9b293a328 |
13 | 5364c4a5a9 |
14 | 29c01a04da |
15 | 16bedb7c05 |
hex | d021dc450 |
55870080080 has 80 divisors (see below), whose sum is σ = 133548733584. Its totient is φ = 21723893760.
The previous prime is 55870080073. The next prime is 55870080107. The reversal of 55870080080 is 8008007855.
It is a happy number.
It can be written as a sum of positive squares in 8 ways, for example, as 2848570384 + 53021509696 = 53372^2 + 230264^2 .
It is a tau number, because it is divible by the number of its divisors (80).
It is a super-2 number, since 2×558700800802 (a number of 22 digits) contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (41).
It is a congruent number.
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 15 ways as a sum of consecutive naturals, for example, 877814 + ... + 939306.
Almost surely, 255870080080 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 55870080080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (66774366792).
55870080080 is an abundant number, since it is smaller than the sum of its proper divisors (77678653504).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
55870080080 is a wasteful number, since it uses less digits than its factorization.
55870080080 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 61824 (or 61818 counting only the distinct ones).
The product of its (nonzero) digits is 89600, while the sum is 41.
The spelling of 55870080080 in words is "fifty-five billion, eight hundred seventy million, eighty thousand, eighty".
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