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204101401 = 71947103317
BaseRepresentation
bin11000010101001…
…01011100011001
3112020001102111011
430022211130121
5404222221101
632130333521
75025555550
oct1412453431
9466042434
10204101401
11a5234449
125842a2a1
133339207a
141d16cd97
1512db9751
hexc2a5719

204101401 has 32 divisors (see below), whose sum is σ = 253992960. Its totient is φ = 160128576.

The previous prime is 204101389. The next prime is 204101407. The reversal of 204101401 is 104101402.

It is a cyclic number.

It is not a de Polignac number, because 204101401 - 25 = 204101369 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (204101407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 643695 + ... + 644011.

It is an arithmetic number, because the mean of its divisors is an integer number (7937280).

Almost surely, 2204101401 is an apocalyptic number.

It is an amenable number.

204101401 is a deficient number, since it is larger than the sum of its proper divisors (49891559).

204101401 is a wasteful number, since it uses less digits than its factorization.

204101401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 493.

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 204101401 is about 14286.4061611029. The cubic root of 204101401 is about 588.7740521155.

Adding to 204101401 its reverse (104101402), we get a palindrome (308202803).

Subtracting from 204101401 its reverse (104101402), we obtain a palindrome (99999999).

The spelling of 204101401 in words is "two hundred four million, one hundred one thousand, four hundred one".

Divisors: 1 7 19 47 103 133 317 329 721 893 1957 2219 4841 6023 6251 13699 14899 32651 33887 42161 91979 104293 228557 283081 620369 643853 1534597 1981567 4342583 10742179 29157343 204101401