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12804102 = 233673539
BaseRepresentation
bin110000110110…
…000000000110
3220002111221000
4300312000012
511234212402
61134234130
7213555513
oct60660006
926074830
1012804102
117255a03
124355946
132863cbc
1419b430a
1511cdc1c
hexc36006

12804102 has 32 divisors (see below), whose sum is σ = 28886400. Its totient is φ = 4203144.

The previous prime is 12804061. The next prime is 12804107. The reversal of 12804102 is 20140821.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12804107) 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, 1849 + ... + 5387.

It is an arithmetic number, because the mean of its divisors is an integer number (902700).

Almost surely, 212804102 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12804102, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14443200).

12804102 is an abundant number, since it is smaller than the sum of its proper divisors (16082298).

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

12804102 is a wasteful number, since it uses less digits than its factorization.

12804102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3617 (or 3611 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

The square root of 12804102 is about 3578.2819900058. The cubic root of 12804102 is about 233.9464045564.

Adding to 12804102 its reverse (20140821), we get a palindrome (32944923).

The spelling of 12804102 in words is "twelve million, eight hundred four thousand, one hundred two".

Divisors: 1 2 3 6 9 18 27 54 67 134 201 402 603 1206 1809 3539 3618 7078 10617 21234 31851 63702 95553 191106 237113 474226 711339 1422678 2134017 4268034 6402051 12804102