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104204221 = 1129326659
BaseRepresentation
bin1100011011000…
…00011110111101
321021002010022121
412031200132331
5203134013341
614201242541
72403502252
oct615403675
9237063277
10104204221
11539031a0
122aa93451
1318786304
14dba7429
1592354d1
hex63607bd

104204221 has 8 divisors (see below), whose sum is σ = 117597600. Its totient is φ = 91464240.

The previous prime is 104204213. The next prime is 104204231. The reversal of 104204221 is 122402401.

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

It is a cyclic number.

It is not a de Polignac number, because 104204221 - 23 = 104204213 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 104204195 and 104204204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (104204231) 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, 163011 + ... + 163648.

It is an arithmetic number, because the mean of its divisors is an integer number (14699700).

Almost surely, 2104204221 is an apocalyptic number.

104204221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

104204221 is a deficient number, since it is larger than the sum of its proper divisors (13393379).

104204221 is a wasteful number, since it uses less digits than its factorization.

104204221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 326699.

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 104204221 is about 10208.0468748924. The cubic root of 104204221 is about 470.5745516159.

Adding to 104204221 its reverse (122402401), we get a palindrome (226606622).

It can be divided in two parts, 10420 and 4221, that added together give a palindrome (14641).

The spelling of 104204221 in words is "one hundred four million, two hundred four thousand, two hundred twenty-one".

Divisors: 1 11 29 319 326659 3593249 9473111 104204221