Base | Representation |
---|---|
bin | 101000101111… |
… | …101110111110 |
3 | 202002122221220 |
4 | 220233232332 |
5 | 10213300103 |
6 | 1020534210 |
7 | 156534516 |
oct | 50575676 |
9 | 22078856 |
10 | 10681278 |
11 | 6036003 |
12 | 36b1366 |
13 | 229c9aa |
14 | 15c0846 |
15 | e0ec53 |
hex | a2fbbe |
10681278 has 16 divisors (see below), whose sum is σ = 21396096. Its totient is φ = 3554840.
The previous prime is 10681277. The next prime is 10681289. The reversal of 10681278 is 87218601.
It is a happy number.
It is a super-2 number, since 2×106812782 = 228179399426568, which contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (10681273) 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, 4993 + ... + 6803.
It is an arithmetic number, because the mean of its divisors is an integer number (1337256).
Almost surely, 210681278 is an apocalyptic number.
10681278 is an abundant number, since it is smaller than the sum of its proper divisors (10714818).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
10681278 is a wasteful number, since it uses less digits than its factorization.
10681278 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2799.
The product of its (nonzero) digits is 5376, while the sum is 33.
The square root of 10681278 is about 3268.2224526491. Note that the first 3 decimals coincide. The cubic root of 10681278 is about 220.2289489832.
Adding to 10681278 its reverse (87218601), we get a palindrome (97899879).
It can be divided in two parts, 1068 and 1278, that added together give a triangular number (2346 = T68).
The spelling of 10681278 in words is "ten million, six hundred eighty-one thousand, two hundred seventy-eight".
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