Base | Representation |
---|---|
bin | 100100101010010… |
… | …0001110011000000 |
3 | 10011201200110202220 |
4 | 1021110201303000 |
5 | 10004402234310 |
6 | 322021411040 |
7 | 42324555042 |
oct | 11124416300 |
9 | 3151613686 |
10 | 1230118080 |
11 | 581407a14 |
12 | 2a3b69a80 |
13 | 167b0b129 |
14 | b952da92 |
15 | 72ed9670 |
hex | 49521cc0 |
1230118080 has 112 divisors (see below), whose sum is σ = 4001012064. Its totient is φ = 320020480.
The previous prime is 1230118069. The next prime is 1230118111. The reversal of 1230118080 is 808110321.
It is a Harshad number since it is a multiple of its sum of digits (24).
It is a self number, because there is not a number n which added to its sum of digits gives 1230118080.
It is an unprimeable number.
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 15 ways as a sum of consecutive naturals, for example, 23734 + ... + 54986.
It is an arithmetic number, because the mean of its divisors is an integer number (35723322).
Almost surely, 21230118080 is an apocalyptic number.
1230118080 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 1230118080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2000506032).
1230118080 is an abundant number, since it is smaller than the sum of its proper divisors (2770893984).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1230118080 is a wasteful number, since it uses less digits than its factorization.
1230118080 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 31314 (or 31304 counting only the distinct ones).
The product of its (nonzero) digits is 384, while the sum is 24.
The square root of 1230118080 is about 35073.0392181801. The cubic root of 1230118080 is about 1071.4755547143.
It can be divided in two parts, 12301 and 18080, that added together give a triangular number (30381 = T246).
The spelling of 1230118080 in words is "one billion, two hundred thirty million, one hundred eighteen thousand, eighty".
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