Base | Representation |
---|---|
bin | 111000010011010000101… |
… | …010011011001000000001 |
3 | 111200212111021011112200221 |
4 | 320103100222123020001 |
5 | 1001342123131122411 |
6 | 12121214135143041 |
7 | 546344500563541 |
oct | 70232052331001 |
9 | 14625437145627 |
10 | 3868971348481 |
11 | 126190450a418 |
12 | 5259ba814a81 |
13 | 220ac4a94785 |
14 | d538b3c9321 |
15 | 6a992ba6071 |
hex | 384d0a9b201 |
3868971348481 has 8 divisors (see below), whose sum is σ = 3966540546024. Its totient is φ = 3771554724480.
The previous prime is 3868971348443. The next prime is 3868971348491. The reversal of 3868971348481 is 1848431798683.
It can be written as a sum of positive squares in 4 ways, for example, as 96671246400 + 3772300102081 = 310920^2 + 1942241^2 .
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 3868971348481 - 211 = 3868971346433 is a prime.
It is a super-2 number, since 2×38689713484812 (a number of 26 digits) contains 22 as substring.
It is a Duffinian number.
It is a self number, because there is not a number n which added to its sum of digits gives 3868971348481.
It is not an unprimeable number, because it can be changed into a prime (3868971348401) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38092030 + ... + 38193463.
It is an arithmetic number, because the mean of its divisors is an integer number (495817568253).
Almost surely, 23868971348481 is an apocalyptic number.
It is an amenable number.
3868971348481 is a deficient number, since it is larger than the sum of its proper divisors (97569197543).
3868971348481 is a wasteful number, since it uses less digits than its factorization.
3868971348481 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 76286771.
The product of its digits is 222953472, while the sum is 70.
The spelling of 3868971348481 in words is "three trillion, eight hundred sixty-eight billion, nine hundred seventy-one million, three hundred forty-eight thousand, four hundred eighty-one".
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