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10110121 = 721753229
BaseRepresentation
bin100110100100…
…010010101001
3201000122110221
4212210102221
510042010441
61000410041
7151635400
oct46442251
921018427
1010110121
11578597a
123476921
13212ca28
1414b2637
15d4a8d1
hex9a44a9

10110121 has 24 divisors (see below), whose sum is σ = 12742920. Its totient is φ = 7967232.

The previous prime is 10110119. The next prime is 10110131. The reversal of 10110121 is 12101101.

10110121 is nontrivially palindromic in base 16.

10110121 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 6350400 + 3759721 = 2520^2 + 1939^2 .

It is not a de Polignac number, because 10110121 - 21 = 10110119 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (7).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10110131) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 44035 + ... + 44263.

It is an arithmetic number, because the mean of its divisors is an integer number (530955).

Almost surely, 210110121 is an apocalyptic number.

It is an amenable number.

10110121 is a deficient number, since it is larger than the sum of its proper divisors (2632799).

10110121 is a wasteful number, since it uses less digits than its factorization.

10110121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 313 (or 306 counting only the distinct ones).

The product of its (nonzero) digits is 2, while the sum is 7.

The square root of 10110121 is about 3179.6416464753. The cubic root of 10110121 is about 216.2314120813.

Adding to 10110121 its reverse (12101101), we get a palindrome (22211222).

Multiplying 10110121 by its reverse (12101101), we get a palindrome (122343595343221).

The spelling of 10110121 in words is "ten million, one hundred ten thousand, one hundred twenty-one".

Divisors: 1 7 17 49 53 119 229 371 833 901 1603 2597 3893 6307 11221 12137 27251 44149 84959 190757 206329 594713 1444303 10110121