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30282169 = 376113417
BaseRepresentation
bin111001110000…
…1000110111001
32002222111022211
41303201012321
530223012134
63001015121
7515252131
oct163410671
962874284
1030282169
1116103495
12a1844a1
136373558
144043ac1
1529d2764
hex1ce11b9

30282169 has 8 divisors (see below), whose sum is σ = 31612808. Its totient is φ = 28978560.

The previous prime is 30282157. The next prime is 30282179. The reversal of 30282169 is 96128203.

It can be written as a sum of positive squares in 4 ways, for example, as 1926544 + 28355625 = 1388^2 + 5325^2 .

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 30282169 - 27 = 30282041 is a prime.

It is a super-2 number, since 2×302821692 = 1834019518689122, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 30282169.

It is not an unprimeable number, because it can be changed into a prime (30282179) 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, 4452 + ... + 8965.

It is an arithmetic number, because the mean of its divisors is an integer number (3951601).

Almost surely, 230282169 is an apocalyptic number.

It is an amenable number.

30282169 is a deficient number, since it is larger than the sum of its proper divisors (1330639).

30282169 is a wasteful number, since it uses less digits than its factorization.

30282169 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13515.

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 30282169 is about 5502.9236774646. The cubic root of 30282169 is about 311.6943951740.

The spelling of 30282169 in words is "thirty million, two hundred eighty-two thousand, one hundred sixty-nine".

Divisors: 1 37 61 2257 13417 496429 818437 30282169