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20600104 = 2371921019
BaseRepresentation
bin100111010010…
…1010100101000
31102202121000211
41032211110220
520233200404
62013310504
7340045420
oct116452450
942677024
1020600104
11106a0188
126a95434
134363615
142a43480
151c1db04
hex13a5528

20600104 has 48 divisors (see below), whose sum is σ = 46634400. Its totient is φ = 8355744.

The previous prime is 20600101. The next prime is 20600113. The reversal of 20600104 is 40100602.

It is not an unprimeable number, because it can be changed into a prime (20600101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19707 + ... + 20725.

It is an arithmetic number, because the mean of its divisors is an integer number (971550).

Almost surely, 220600104 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20600104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23317200).

20600104 is an abundant number, since it is smaller than the sum of its proper divisors (26034296).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20600104 is a wasteful number, since it uses less digits than its factorization.

20600104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1070 (or 1047 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 20600104 is about 4538.7337441185. The cubic root of 20600104 is about 274.1299399668.

Adding to 20600104 its reverse (40100602), we get a palindrome (60700706).

The spelling of 20600104 in words is "twenty million, six hundred thousand, one hundred four".

Divisors: 1 2 4 7 8 14 19 28 38 56 76 133 152 266 361 532 722 1019 1064 1444 2038 2527 2888 4076 5054 7133 8152 10108 14266 19361 20216 28532 38722 57064 77444 135527 154888 271054 367859 542108 735718 1084216 1471436 2575013 2942872 5150026 10300052 20600104