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8542117 = 131197331
BaseRepresentation
bin100000100101…
…011110100101
3121001222120201
4200211132211
54141321432
6503030501
7132415063
oct40453645
917058521
108542117
114904901
122a3b431
131a0110c
1411c5033
15b3aee7
hex8257a5

8542117 has 8 divisors (see below), whose sum is σ = 8677152. Its totient is φ = 8408400.

The previous prime is 8542069. The next prime is 8542129. The reversal of 8542117 is 7112458.

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

It is a cyclic number.

It is not a de Polignac number, because 8542117 - 215 = 8509349 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8542817) 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 7 ways as a sum of consecutive naturals, for example, 25642 + ... + 25972.

It is an arithmetic number, because the mean of its divisors is an integer number (1084644).

Almost surely, 28542117 is an apocalyptic number.

It is an amenable number.

8542117 is a deficient number, since it is larger than the sum of its proper divisors (135035).

8542117 is a wasteful number, since it uses less digits than its factorization.

8542117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 659.

The product of its digits is 2240, while the sum is 28.

The square root of 8542117 is about 2922.6900280392. The cubic root of 8542117 is about 204.4192725805.

The spelling of 8542117 in words is "eight million, five hundred forty-two thousand, one hundred seventeen".

Divisors: 1 131 197 331 25807 43361 65207 8542117