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10810201 = 12019001
BaseRepresentation
bin101001001111…
…001101011001
3202100012210211
4221033031121
510231411301
61023411121
7160612423
oct51171531
922305724
1010810201
116113956
123753aa1
13231658c
141615813
15e38051
hexa4f359

10810201 has 4 divisors (see below), whose sum is σ = 10820404. Its totient is φ = 10800000.

The previous prime is 10810199. The next prime is 10810211. The reversal of 10810201 is 10201801.

10810201 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 10201801 = 70914389.

It can be written as a sum of positive squares in 2 ways, for example, as 602176 + 10208025 = 776^2 + 3195^2 .

It is a 3-Lehmer number, since φ(10810201) divides (10810201-1)3.

It is a cyclic number.

It is not a de Polignac number, because 10810201 - 21 = 10810199 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10810211) 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 3 ways as a sum of consecutive naturals, for example, 3300 + ... + 5701.

It is an arithmetic number, because the mean of its divisors is an integer number (2705101).

Almost surely, 210810201 is an apocalyptic number.

It is an amenable number.

10810201 is a deficient number, since it is larger than the sum of its proper divisors (10203).

10810201 is an equidigital number, since it uses as much as digits as its factorization.

10810201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10202.

The product of its (nonzero) digits is 16, while the sum is 13.

The square root of 10810201 is about 3287.8870114406. The cubic root of 10810201 is about 221.1114621024. Note that the first 3 decimals are identical.

Subtracting from 10810201 its reverse (10201801), we obtain a square (608400 = 7802).

It can be divided in two parts, 10810 and 201, that added together give a palindrome (11011).

The spelling of 10810201 in words is "ten million, eight hundred ten thousand, two hundred one".

Divisors: 1 1201 9001 10810201