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28310106 = 23113711593
BaseRepresentation
bin110101111111…
…1101001011010
31222021022011110
41223333221122
524221410411
62450441150
7462426516
oct153775132
958238143
1028310106
1114a86890
1295931b6
135b32a56
143a8d146
1527432a6
hex1affa5a

28310106 has 32 divisors (see below), whose sum is σ = 63442368. Its totient is φ = 8346240.

The previous prime is 28310089. The next prime is 28310111. The reversal of 28310106 is 60101382.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3355 + ... + 8238.

It is an arithmetic number, because the mean of its divisors is an integer number (1982574).

Almost surely, 228310106 is an apocalyptic number.

28310106 is an abundant number, since it is smaller than the sum of its proper divisors (35132262).

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

28310106 is a wasteful number, since it uses less digits than its factorization.

28310106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11646.

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

The square root of 28310106 is about 5320.7241988286. The cubic root of 28310106 is about 304.7758130379.

Adding to 28310106 its reverse (60101382), we get a palindrome (88411488).

The spelling of 28310106 in words is "twenty-eight million, three hundred ten thousand, one hundred six".

Divisors: 1 2 3 6 11 22 33 37 66 74 111 222 407 814 1221 2442 11593 23186 34779 69558 127523 255046 382569 428941 765138 857882 1286823 2573646 4718351 9436702 14155053 28310106