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8106217 = 72198707
BaseRepresentation
bin11110111011000011101001
3120020211122021
4132323003221
54033344332
6445424441
7125621200
oct36730351
916224567
108106217
114637359
12286b121
1318aa8a2
141110237
15aa1c97
hex7bb0e9

8106217 has 12 divisors (see below), whose sum is σ = 9927120. Its totient is φ = 6581736.

The previous prime is 8106211. The next prime is 8106251. The reversal of 8106217 is 7126018.

It is not a de Polignac number, because 8106217 - 27 = 8106089 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 8106191 and 8106200.

It is not an unprimeable number, because it can be changed into a prime (8106211) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3423 + ... + 5284.

It is an arithmetic number, because the mean of its divisors is an integer number (827260).

Almost surely, 28106217 is an apocalyptic number.

It is an amenable number.

8106217 is a deficient number, since it is larger than the sum of its proper divisors (1820903).

8106217 is a wasteful number, since it uses less digits than its factorization.

8106217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8740 (or 8733 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 25.

The square root of 8106217 is about 2847.1419002220. The cubic root of 8106217 is about 200.8812529298.

The spelling of 8106217 in words is "eight million, one hundred six thousand, two hundred seventeen".

Divisors: 1 7 19 49 133 931 8707 60949 165433 426643 1158031 8106217