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8506340 = 225425317
BaseRepresentation
bin100000011100…
…101111100100
3121000011111122
4200130233210
54134200330
6502153112
7132205553
oct40345744
917004448
108506340
11488aa37
122a22798
1319baa4b
1411b5d9a
15b305e5
hex81cbe4

8506340 has 12 divisors (see below), whose sum is σ = 17863356. Its totient is φ = 3402528.

The previous prime is 8506339. The next prime is 8506349. The reversal of 8506340 is 436058.

It can be written as a sum of positive squares in 2 ways, for example, as 3771364 + 4734976 = 1942^2 + 2176^2 .

It is not an unprimeable number, because it can be changed into a prime (8506349) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 212639 + ... + 212678.

It is an arithmetic number, because the mean of its divisors is an integer number (1488613).

Almost surely, 28506340 is an apocalyptic number.

It is an amenable number.

8506340 is an abundant number, since it is smaller than the sum of its proper divisors (9357016).

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

8506340 is a wasteful number, since it uses less digits than its factorization.

8506340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 425326 (or 425324 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 8506340 is about 2916.5630457784. The cubic root of 8506340 is about 204.1334830608.

The spelling of 8506340 in words is "eight million, five hundred six thousand, three hundred forty".

Divisors: 1 2 4 5 10 20 425317 850634 1701268 2126585 4253170 8506340