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8180117 = 112925643
BaseRepresentation
bin11111001101000110010101
3120101121000022
4133031012111
54043230432
6451154525
7126346511
oct37150625
916347008
108180117
114687930
1228a5a45
13190540a
14112d141
15ab8b12
hex7cd195

8180117 has 8 divisors (see below), whose sum is σ = 9231840. Its totient is φ = 7179760.

The previous prime is 8180101. The next prime is 8180119. The reversal of 8180117 is 7110818.

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 8180117 - 24 = 8180101 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 (8180119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12503 + ... + 13140.

It is an arithmetic number, because the mean of its divisors is an integer number (1153980).

Almost surely, 28180117 is an apocalyptic number.

It is an amenable number.

8180117 is a deficient number, since it is larger than the sum of its proper divisors (1051723).

8180117 is a wasteful number, since it uses less digits than its factorization.

8180117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25683.

The product of its (nonzero) digits is 448, while the sum is 26.

The square root of 8180117 is about 2860.0903831872. The cubic root of 8180117 is about 201.4898491891.

It can be divided in two parts, 81801 and 17, that added together give a palindrome (81818).

The spelling of 8180117 in words is "eight million, one hundred eighty thousand, one hundred seventeen".

Divisors: 1 11 29 319 25643 282073 743647 8180117