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30170169 = 3219117551
BaseRepresentation
bin111001100010…
…1110000111001
32002202210200200
41303011300321
530210421134
62554352413
7514304451
oct163056071
962683620
1030170169
1116037327
12a12b709
136334593
144014d61
1529ae499
hex1cc5c39

30170169 has 12 divisors (see below), whose sum is σ = 43809792. Its totient is φ = 20007000.

The previous prime is 30170149. The next prime is 30170171. The reversal of 30170169 is 96107103.

It is not a de Polignac number, because 30170169 - 219 = 29645881 is a prime.

It is a super-2 number, since 2×301701692 = 1820478194977122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (30170149) 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 11 ways as a sum of consecutive naturals, for example, 7057 + ... + 10494.

It is an arithmetic number, because the mean of its divisors is an integer number (3650816).

Almost surely, 230170169 is an apocalyptic number.

It is an amenable number.

30170169 is a deficient number, since it is larger than the sum of its proper divisors (13639623).

30170169 is a wasteful number, since it uses less digits than its factorization.

30170169 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17748 (or 17745 counting only the distinct ones).

The product of its (nonzero) digits is 1134, while the sum is 27.

The square root of 30170169 is about 5492.7378419145. The cubic root of 30170169 is about 311.3096484124.

The spelling of 30170169 in words is "thirty million, one hundred seventy thousand, one hundred sixty-nine".

Divisors: 1 3 9 191 573 1719 17551 52653 157959 3352241 10056723 30170169