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8506142 = 210939019
BaseRepresentation
bin100000011100…
…101100011110
3121000011020022
4200130230132
54134144032
6502152142
7132205151
oct40345436
917004208
108506142
11488a877
122a22652
1319ba928
1411b5c98
15b30512
hex81cb1e

8506142 has 8 divisors (see below), whose sum is σ = 12876600. Its totient is φ = 4213944.

The previous prime is 8506117. The next prime is 8506153. The reversal of 8506142 is 2416058.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

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, 19292 + ... + 19727.

It is an arithmetic number, because the mean of its divisors is an integer number (1609575).

Almost surely, 28506142 is an apocalyptic number.

8506142 is a deficient number, since it is larger than the sum of its proper divisors (4370458).

8506142 is a wasteful number, since it uses less digits than its factorization.

8506142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39130.

The product of its (nonzero) digits is 1920, while the sum is 26.

The square root of 8506142 is about 2916.5291015178. The cubic root of 8506142 is about 204.1318991934.

The spelling of 8506142 in words is "eight million, five hundred six thousand, one hundred forty-two".

Divisors: 1 2 109 218 39019 78038 4253071 8506142