Base | Representation |
---|---|
bin | 110110100100011… |
… | …1110101000000000 |
3 | 11201121111000010010 |
4 | 1231020332220000 |
5 | 12222223221313 |
6 | 501410104520 |
7 | 63242561052 |
oct | 15510765000 |
9 | 4647430103 |
10 | 1831070208 |
11 | 85a656170 |
12 | 43127b140 |
13 | 23247b1c6 |
14 | 1352838d2 |
15 | aab444c3 |
hex | 6d23ea00 |
1831070208 has 320 divisors, whose sum is σ = 5709813120. Its totient is φ = 516096000.
The previous prime is 1831070201. The next prime is 1831070249. The reversal of 1831070208 is 8020701381.
It is a happy number.
It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.
It is not an unprimeable number, because it can be changed into a prime (1831070201) by changing a digit.
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 31 ways as a sum of consecutive naturals, for example, 18129358 + ... + 18129458.
It is an arithmetic number, because the mean of its divisors is an integer number (17843166).
Almost surely, 21831070208 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 1831070208, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2854906560).
1831070208 is an abundant number, since it is smaller than the sum of its proper divisors (3878742912).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1831070208 is a wasteful number, since it uses less digits than its factorization.
1831070208 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 199 (or 183 counting only the distinct ones).
The product of its (nonzero) digits is 2688, while the sum is 30.
The square root of 1831070208 is about 42791.0061578365. The cubic root of 1831070208 is about 1223.3995944644.
Adding to 1831070208 its reverse (8020701381), we get a palindrome (9851771589).
The spelling of 1831070208 in words is "one billion, eight hundred thirty-one million, seventy thousand, two hundred eight".
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