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94542169 = 281509661
BaseRepresentation
bin1011010001010…
…01100101011001
320120220020110211
411220221211121
5143200322134
613214211121
72225411101
oct550514531
9216806424
1094542169
1149403a27
12277b3aa1
1316782517
14c7b0201
158477764
hex5a29959

94542169 has 8 divisors (see below), whose sum is σ = 95208840. Its totient is φ = 93878400.

The previous prime is 94542163. The next prime is 94542179. The reversal of 94542169 is 96124549.

It can be written as a sum of positive squares in 4 ways, for example, as 49491225 + 45050944 = 7035^2 + 6712^2 .

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 94542169 - 213 = 94533977 is a prime.

It is a super-2 number, since 2×945421692 = 17876443438449122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (94542163) 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, 142699 + ... + 143359.

It is an arithmetic number, because the mean of its divisors is an integer number (11901105).

Almost surely, 294542169 is an apocalyptic number.

It is an amenable number.

94542169 is a deficient number, since it is larger than the sum of its proper divisors (666671).

94542169 is a wasteful number, since it uses less digits than its factorization.

94542169 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1451.

The product of its digits is 77760, while the sum is 40.

The square root of 94542169 is about 9723.2797450243. The cubic root of 94542169 is about 455.5560869868.

The spelling of 94542169 in words is "ninety-four million, five hundred forty-two thousand, one hundred sixty-nine".

Divisors: 1 281 509 661 143029 185741 336449 94542169