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8906540 = 225974591
BaseRepresentation
bin100001111110…
…011100101100
3121202111110212
4201332130230
54240002130
6514521552
7135463406
oct41763454
917674425
108906540
115033685
122b962b8
131acac56
14127bb76
15bade95
hex87e72c

8906540 has 24 divisors (see below), whose sum is σ = 18900672. Its totient is φ = 3525120.

The previous prime is 8906537. The next prime is 8906561. The reversal of 8906540 is 456098.

It is a junction number, because it is equal to n+sod(n) for n = 8906497 and 8906506.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 356 + ... + 4235.

It is an arithmetic number, because the mean of its divisors is an integer number (787528).

Almost surely, 28906540 is an apocalyptic number.

It is an amenable number.

8906540 is an abundant number, since it is smaller than the sum of its proper divisors (9994132).

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

8906540 is a wasteful number, since it uses less digits than its factorization.

8906540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4697 (or 4695 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 32.

The square root of 8906540 is about 2984.3826832362. The cubic root of 8906540 is about 207.2858583369.

The spelling of 8906540 in words is "eight million, nine hundred six thousand, five hundred forty".

Divisors: 1 2 4 5 10 20 97 194 388 485 970 1940 4591 9182 18364 22955 45910 91820 445327 890654 1781308 2226635 4453270 8906540