Base | Representation |
---|---|
bin | 1010111110101000001… |
… | …0000100001011100000 |
3 | 200000211112222220212212 |
4 | 2233222002010023200 |
5 | 11042233130104210 |
6 | 222351330541252 |
7 | 16424634402440 |
oct | 2575202041340 |
9 | 600745886785 |
10 | 188610003680 |
11 | 72a974803aa |
12 | 30679137828 |
13 | 14a2a676697 |
14 | 91b34d2120 |
15 | 4d8d54a805 |
hex | 2bea0842e0 |
188610003680 has 96 divisors (see below), whose sum is σ = 509716234944. Its totient is φ = 64606703616.
The previous prime is 188610003667. The next prime is 188610003691. The reversal of 188610003680 is 86300016881.
It is a super-2 number, since 2×1886100036802 (a number of 23 digits) contains 22 as substring.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1147124 + ... + 1301196.
It is an arithmetic number, because the mean of its divisors is an integer number (5309544114).
Almost surely, 2188610003680 is an apocalyptic number.
188610003680 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 188610003680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (254858117472).
188610003680 is an abundant number, since it is smaller than the sum of its proper divisors (321106231264).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
188610003680 is a wasteful number, since it uses less digits than its factorization.
188610003680 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 155188 (or 155180 counting only the distinct ones).
The product of its (nonzero) digits is 55296, while the sum is 41.
The spelling of 188610003680 in words is "one hundred eighty-eight billion, six hundred ten million, three thousand, six hundred eighty".
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