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104244121 = 142972949
BaseRepresentation
bin1100011011010…
…10001110011001
321021011011001101
412031222032121
5203141302441
614202151401
72404026502
oct615521631
9237134041
10104244121
1153930173
122aab2561
131879b517
14dbb7ba9
159242231
hex636a399

104244121 has 4 divisors (see below), whose sum is σ = 104318500. Its totient is φ = 104169744.

The previous prime is 104244097. The next prime is 104244131. The reversal of 104244121 is 121442401.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 121442401 = 294187669.

It can be written as a sum of positive squares in 2 ways, for example, as 63027721 + 41216400 = 7939^2 + 6420^2 .

It is a cyclic number.

It is not a de Polignac number, because 104244121 - 215 = 104211353 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (104244131) 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, 35046 + ... + 37903.

It is an arithmetic number, because the mean of its divisors is an integer number (26079625).

Almost surely, 2104244121 is an apocalyptic number.

It is an amenable number.

104244121 is a deficient number, since it is larger than the sum of its proper divisors (74379).

104244121 is an equidigital number, since it uses as much as digits as its factorization.

104244121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74378.

The product of its (nonzero) digits is 256, while the sum is 19.

The square root of 104244121 is about 10210.0010284035. The cubic root of 104244121 is about 470.6346052570.

Adding to 104244121 its reverse (121442401), we get a palindrome (225686522).

The spelling of 104244121 in words is "one hundred four million, two hundred forty-four thousand, one hundred twenty-one".

Divisors: 1 1429 72949 104244121