Base | Representation |
---|---|
bin | 1011111100111… |
… | …01101000100001 |
3 | 20222122202101121 |
4 | 11332131220201 |
5 | 201131313020 |
6 | 13540532241 |
7 | 2325125221 |
oct | 576355041 |
9 | 228582347 |
10 | 100260385 |
11 | 5165a125 |
12 | 296b1081 |
13 | 17a05194 |
14 | d45c081 |
15 | 8c06baa |
hex | 5f9da21 |
100260385 has 4 divisors (see below), whose sum is σ = 120312468. Its totient is φ = 80208304.
The previous prime is 100260361. The next prime is 100260389. The reversal of 100260385 is 583062001.
It is a happy number.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 583062001 = 3581 ⋅162821.
It can be written as a sum of positive squares in 2 ways, for example, as 54508689 + 45751696 = 7383^2 + 6764^2 .
It is a cyclic number.
It is not a de Polignac number, because 100260385 - 27 = 100260257 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (100260389) 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, 10026034 + ... + 10026043.
It is an arithmetic number, because the mean of its divisors is an integer number (30078117).
Almost surely, 2100260385 is an apocalyptic number.
It is an amenable number.
100260385 is a deficient number, since it is larger than the sum of its proper divisors (20052083).
100260385 is an equidigital number, since it uses as much as digits as its factorization.
100260385 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 20052082.
The product of its (nonzero) digits is 1440, while the sum is 25.
The square root of 100260385 is about 10013.0107859724. The cubic root of 100260385 is about 464.5614009009.
The spelling of 100260385 in words is "one hundred million, two hundred sixty thousand, three hundred eighty-five".
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