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8540252 = 227319839
BaseRepresentation
bin100000100101…
…000001011100
3121001220000122
4200211001130
54141242002
6503014112
7132406460
oct40450134
917056018
108540252
114903466
122a3a338
131a00306
1411c44a0
15b3a6a2
hex82505c

8540252 has 24 divisors (see below), whose sum is σ = 17633280. Its totient is φ = 3541680.

The previous prime is 8540243. The next prime is 8540281. The reversal of 8540252 is 2520458.

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4052 + ... + 5787.

It is an arithmetic number, because the mean of its divisors is an integer number (734720).

Almost surely, 28540252 is an apocalyptic number.

It is an amenable number.

8540252 is an abundant number, since it is smaller than the sum of its proper divisors (9093028).

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

8540252 is a wasteful number, since it uses less digits than its factorization.

8540252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9881 (or 9879 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 26.

The square root of 8540252 is about 2922.3709552348. The cubic root of 8540252 is about 204.4043945476.

The spelling of 8540252 in words is "eight million, five hundred forty thousand, two hundred fifty-two".

Divisors: 1 2 4 7 14 28 31 62 124 217 434 868 9839 19678 39356 68873 137746 275492 305009 610018 1220036 2135063 4270126 8540252