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8124340 = 225758031
BaseRepresentation
bin11110111111011110110100
3120021202111111
4132333132310
54034434330
6450044404
7126025060
oct36773664
916252444
108124340
114649a34
122879704
1318b5c03
141116aa0
15aa732a
hex7bf7b4

8124340 has 24 divisors (see below), whose sum is σ = 19498752. Its totient is φ = 2785440.

The previous prime is 8124329. The next prime is 8124341. The reversal of 8124340 is 434218.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8124341) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 28876 + ... + 29155.

It is an arithmetic number, because the mean of its divisors is an integer number (812448).

Almost surely, 28124340 is an apocalyptic number.

It is an amenable number.

8124340 is an abundant number, since it is smaller than the sum of its proper divisors (11374412).

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

8124340 is a wasteful number, since it uses less digits than its factorization.

8124340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58047 (or 58045 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 22.

The square root of 8124340 is about 2850.3227887381. The cubic root of 8124340 is about 201.0308443380.

Adding to 8124340 its reverse (434218), we get a palindrome (8558558).

It can be divided in two parts, 8124 and 340, that added together give a square (8464 = 922).

The spelling of 8124340 in words is "eight million, one hundred twenty-four thousand, three hundred forty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 140 58031 116062 232124 290155 406217 580310 812434 1160620 1624868 2031085 4062170 8124340