Base | Representation |
---|---|
bin | 10011011001100101… |
… | …100111011111100110 |
3 | 1222202201001020220100 |
4 | 103121211213133212 |
5 | 320130034324100 |
6 | 13322551244530 |
7 | 1335124234530 |
oct | 233145473746 |
9 | 58681036810 |
10 | 20830386150 |
11 | 891a234472 |
12 | 4054079746 |
13 | 1c6c7394a2 |
14 | 10186c0850 |
15 | 81dae6400 |
hex | 4d99677e6 |
20830386150 has 144 divisors (see below), whose sum is σ = 64192793184. Its totient is φ = 4743843840.
The previous prime is 20830386113. The next prime is 20830386151. The reversal of 20830386150 is 5168303802.
20830386150 is a `hidden beast` number, since 2 + 0 + 8 + 3 + 0 + 38 + 615 + 0 = 666.
It is a super-2 number, since 2×208303861502 (a number of 21 digits) contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (20830386151) by changing a digit.
It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 860614 + ... + 884486.
It is an arithmetic number, because the mean of its divisors is an integer number (445783286).
Almost surely, 220830386150 is an apocalyptic number.
It is a practical number, because each smaller number is the sum of distinct divisors of 20830386150, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32096396592).
20830386150 is an abundant number, since it is smaller than the sum of its proper divisors (43362407034).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
20830386150 is a wasteful number, since it uses less digits than its factorization.
20830386150 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 24175 (or 24167 counting only the distinct ones).
The product of its (nonzero) digits is 34560, while the sum is 36.
Adding to 20830386150 its reverse (5168303802), we get a palindrome (25998689952).
The spelling of 20830386150 in words is "twenty billion, eight hundred thirty million, three hundred eighty-six thousand, one hundred fifty".
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