Base | Representation |
---|---|
bin | 101000101111… |
… | …011100111001 |
3 | 202002121101001 |
4 | 220233130321 |
5 | 10213230441 |
6 | 1020525001 |
7 | 156531244 |
oct | 50573471 |
9 | 22077331 |
10 | 10680121 |
11 | 6035151 |
12 | 36b0761 |
13 | 229c2ca |
14 | 15c025b |
15 | e0e731 |
hex | a2f739 |
10680121 has 4 divisors (see below), whose sum is σ = 10861200. Its totient is φ = 10499044.
The previous prime is 10680101. The next prime is 10680127. The reversal of 10680121 is 12108601.
It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 12108601 = 509 ⋅23789.
It is a cyclic number.
It is not a de Polignac number, because 10680121 - 27 = 10679993 is a prime.
It is a super-2 number, since 2×106801212 = 228129969149282, which contains 22 as substring.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (10680127) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 90451 + ... + 90568.
It is an arithmetic number, because the mean of its divisors is an integer number (2715300).
Almost surely, 210680121 is an apocalyptic number.
It is an amenable number.
10680121 is a deficient number, since it is larger than the sum of its proper divisors (181079).
10680121 is an equidigital number, since it uses as much as digits as its factorization.
10680121 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 181078.
The product of its (nonzero) digits is 96, while the sum is 19.
The square root of 10680121 is about 3268.0454403206. The cubic root of 10680121 is about 220.2209969355.
Adding to 10680121 its reverse (12108601), we get a palindrome (22788722).
It can be divided in two parts, 10680 and 121, that added together give a palindrome (10801).
The spelling of 10680121 in words is "ten million, six hundred eighty thousand, one hundred twenty-one".
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