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104200491 = 3532272887
BaseRepresentation
bin1100011010111…
…11100100101011
321021001221012110
412031133210223
5203133403431
614201213403
72403455343
oct615374453
9237057173
10104200491
115390040a
122aa91263
13187846c5
14dba5d23
159234346
hex635f92b

104200491 has 16 divisors (see below), whose sum is σ = 142228224. Its totient is φ = 67832544.

The previous prime is 104200489. The next prime is 104200513. The reversal of 104200491 is 194002401.

It is not a de Polignac number, because 104200491 - 21 = 104200489 is a prime.

It is not an unprimeable number, because it can be changed into a prime (104200471) 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, 34650 + ... + 37536.

It is an arithmetic number, because the mean of its divisors is an integer number (8889264).

Almost surely, 2104200491 is an apocalyptic number.

104200491 is a deficient number, since it is larger than the sum of its proper divisors (38027733).

104200491 is a wasteful number, since it uses less digits than its factorization.

104200491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3170.

The product of its (nonzero) digits is 288, while the sum is 21.

The square root of 104200491 is about 10207.8641742531. The cubic root of 104200491 is about 470.5689367953.

Adding to 104200491 its reverse (194002401), we get a palindrome (298202892).

The spelling of 104200491 in words is "one hundred four million, two hundred thousand, four hundred ninety-one".

Divisors: 1 3 53 159 227 681 2887 8661 12031 36093 153011 459033 655349 1966047 34733497 104200491