Base | Representation |
---|---|
bin | 10001100011100101… |
… | …110111101001000100 |
3 | 1210122201222212000100 |
4 | 101203211313221010 |
5 | 302101242201204 |
6 | 12354312444100 |
7 | 1235065440000 |
oct | 214345675104 |
9 | 53581885010 |
10 | 18850740804 |
11 | 7aa382a635 |
12 | 37a10a9630 |
13 | 1a1556aacc |
14 | cab803700 |
15 | 754e04a39 |
hex | 463977a44 |
18850740804 has 135 divisors (see below), whose sum is σ = 55708212287. Its totient is φ = 5374392912.
The previous prime is 18850740791. The next prime is 18850740823. The reversal of 18850740804 is 40804705881.
The square root of 18850740804 is 137298.
It is a perfect power (a square), and thus also a powerful number.
It is a self number, because there is not a number n which added to its sum of digits gives 18850740804.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 40365379 + ... + 40365845.
Almost surely, 218850740804 is an apocalyptic number.
18850740804 is a gapful number since it is divisible by the number (14) formed by its first and last digit.
18850740804 is the 137298-th square number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 18850740804
18850740804 is an abundant number, since it is smaller than the sum of its proper divisors (36857471483).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
18850740804 is an frugal number, since it uses more digits than its factorization.
18850740804 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 972 (or 479 counting only the distinct ones).
The product of its (nonzero) digits is 286720, while the sum is 45.
The spelling of 18850740804 in words is "eighteen billion, eight hundred fifty million, seven hundred forty thousand, eight hundred four".
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