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104002000221 = 3737369132529
BaseRepresentation
bin110000011011100000…
…0001001010101011101
3100221110002010000111010
41200313000021111131
53200444003001341
6115440003445433
710341160262430
oct1406700112535
9327402100433
10104002000221
114011a4660a9
12181a6086879
139a65981702
145068775817
152a8a757716
hex183700955d

104002000221 has 16 divisors (see below), whose sum is σ = 158484675200. Its totient is φ = 59427675648.

The previous prime is 104002000183. The next prime is 104002000247. The reversal of 104002000221 is 122000200401.

It is not a de Polignac number, because 104002000221 - 231 = 101854516573 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 104002000197 and 104002000206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (104002000261) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 718485 + ... + 851013.

It is an arithmetic number, because the mean of its divisors is an integer number (9905292200).

Almost surely, 2104002000221 is an apocalyptic number.

It is an amenable number.

104002000221 is a deficient number, since it is larger than the sum of its proper divisors (54482674979).

104002000221 is a wasteful number, since it uses less digits than its factorization.

104002000221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169908.

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 104002000221 its reverse (122000200401), we get a palindrome (226002200622).

The spelling of 104002000221 in words is "one hundred four billion, two million, two hundred twenty-one", and thus it is an aban number.

Divisors: 1 3 7 21 37369 112107 132529 261583 397587 784749 927703 2783109 4952476201 14857428603 34667333407 104002000221