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104442231 = 337940921
BaseRepresentation
bin1100011100110…
…10100101110111
321021112012210210
412032122211313
5203214122411
614210320503
72405513205
oct616324567
9237465723
10104442231
1153a55aa3
122ab89133
131883a74a
14dc2a075
159280ca6
hex639a977

104442231 has 8 divisors (see below), whose sum is σ = 143020144. Its totient is φ = 67746240.

The previous prime is 104442229. The next prime is 104442251. The reversal of 104442231 is 132244401.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 104442231 - 21 = 104442229 is a prime.

It is a super-2 number, since 2×1044422312 = 21816359232514722, 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 = 104442198 and 104442207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (104442251) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 470350 + ... + 470571.

It is an arithmetic number, because the mean of its divisors is an integer number (17877518).

Almost surely, 2104442231 is an apocalyptic number.

104442231 is a deficient number, since it is larger than the sum of its proper divisors (38577913).

104442231 is an equidigital number, since it uses as much as digits as its factorization.

104442231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 940961.

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 104442231 is about 10219.6981853673. The cubic root of 104442231 is about 470.9325546566.

Adding to 104442231 its reverse (132244401), we get a palindrome (236686632).

The spelling of 104442231 in words is "one hundred four million, four hundred forty-two thousand, two hundred thirty-one".

Divisors: 1 3 37 111 940921 2822763 34814077 104442231