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10104121 = 11389417
BaseRepresentation
bin100110100010…
…110100111001
3201000100020201
4212202310321
510041312441
61000322201
7151612036
oct46426471
921010221
1010104121
115781415
123473361
13212a091
1414b038d
15d48c31
hex9a2d39

10104121 has 4 divisors (see below), whose sum is σ = 10193652. Its totient is φ = 10014592.

The previous prime is 10104113. The next prime is 10104131. The reversal of 10104121 is 12140101.

10104121 is digitally balanced in base 2, 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 an emirpimes, since its reverse is a distinct semiprime: 12140101 = 105111551.

It can be written as a sum of positive squares in 2 ways, for example, as 5588496 + 4515625 = 2364^2 + 2125^2 .

It is a cyclic number.

It is not a de Polignac number, because 10104121 - 23 = 10104113 is a prime.

It is a super-2 number, since 2×101041212 = 204186522365282, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10104098 and 10104107.

It is not an unprimeable number, because it can be changed into a prime (10104131) 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, 44596 + ... + 44821.

It is an arithmetic number, because the mean of its divisors is an integer number (2548413).

Almost surely, 210104121 is an apocalyptic number.

It is an amenable number.

10104121 is a deficient number, since it is larger than the sum of its proper divisors (89531).

10104121 is an equidigital number, since it uses as much as digits as its factorization.

10104121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89530.

The product of its (nonzero) digits is 8, while the sum is 10.

The square root of 10104121 is about 3178.6980039003. The cubic root of 10104121 is about 216.1886283795.

Adding to 10104121 its reverse (12140101), we get a palindrome (22244222).

The spelling of 10104121 in words is "ten million, one hundred four thousand, one hundred twenty-one".

Divisors: 1 113 89417 10104121