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104200223221 = 181575691841
BaseRepresentation
bin110000100001011010…
…0010011100111110101
3100221221220002210022201
41201002310103213311
53201400224120341
6115511404224501
710346115166153
oct1410264234765
9327856083281
10104200223221
1140211344a66
121824053b131
139a97a65c23
145086c143d3
152a9cd60331
hex1842d139f5

104200223221 has 4 divisors (see below), whose sum is σ = 104775915244. Its totient is φ = 103624531200.

The previous prime is 104200223189. The next prime is 104200223243. The reversal of 104200223221 is 122322002401.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 9098298225 + 95101924996 = 95385^2 + 308386^2 .

It is a cyclic number.

It is not a de Polignac number, because 104200223221 - 25 = 104200223189 is a prime.

It is a super-2 number, since 2×1042002232212 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (104200223921) 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, 287845740 + ... + 287846101.

It is an arithmetic number, because the mean of its divisors is an integer number (26193978811).

Almost surely, 2104200223221 is an apocalyptic number.

It is an amenable number.

104200223221 is a deficient number, since it is larger than the sum of its proper divisors (575692023).

104200223221 is an equidigital number, since it uses as much as digits as its factorization.

104200223221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 575692022.

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 104200223221 its reverse (122322002401), we get a palindrome (226522225622).

The spelling of 104200223221 in words is "one hundred four billion, two hundred million, two hundred twenty-three thousand, two hundred twenty-one".

Divisors: 1 181 575691841 104200223221