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8542438 = 219474783
BaseRepresentation
bin100000100101…
…100011100110
3121002000000121
4200211203212
54141324223
6503032154
7132416032
oct40454346
917060017
108542438
114905073
122a3b65a
131a012c8
1411c51c2
15b3b15d
hex8258e6

8542438 has 16 divisors (see below), whose sum is σ = 13777920. Its totient is φ = 3959496.

The previous prime is 8542427. The next prime is 8542451. The reversal of 8542438 is 8342458.

It is a d-powerful number, because it can be written as 8 + 57 + 44 + 223 + 47 + 310 + 8 .

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, 606 + ... + 4177.

It is an arithmetic number, because the mean of its divisors is an integer number (861120).

Almost surely, 28542438 is an apocalyptic number.

8542438 is a deficient number, since it is larger than the sum of its proper divisors (5235482).

8542438 is a wasteful number, since it uses less digits than its factorization.

8542438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4851.

The product of its digits is 30720, while the sum is 34.

The square root of 8542438 is about 2922.7449426866. The cubic root of 8542438 is about 204.4218331387.

The spelling of 8542438 in words is "eight million, five hundred forty-two thousand, four hundred thirty-eight".

Divisors: 1 2 19 38 47 94 893 1786 4783 9566 90877 181754 224801 449602 4271219 8542438