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2445052169 = 7349293167
BaseRepresentation
bin1001000110111100…
…1000100100001001
320022101210112000202
42101233020210021
520001413132134
61042341541545
7114406412660
oct22157104411
96271715022
102445052169
11104519397a
12582a148b5
132cc730c41
14192a29dd7
15e49c4d7e
hex91bc8909

2445052169 has 4 divisors (see below), whose sum is σ = 2794345344. Its totient is φ = 2095758996.

The previous prime is 2445052163. The next prime is 2445052171. The reversal of 2445052169 is 9612505442.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2445052169 - 28 = 2445051913 is a prime.

It is a super-2 number, since 2×24450521692 = 11956560218263209122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2445052163) 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 3 ways as a sum of consecutive naturals, for example, 174646577 + ... + 174646590.

It is an arithmetic number, because the mean of its divisors is an integer number (698586336).

Almost surely, 22445052169 is an apocalyptic number.

It is an amenable number.

2445052169 is a deficient number, since it is larger than the sum of its proper divisors (349293175).

2445052169 is an equidigital number, since it uses as much as digits as its factorization.

2445052169 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 349293174.

The product of its (nonzero) digits is 86400, while the sum is 38.

The square root of 2445052169 is about 49447.4687825373. The cubic root of 2445052169 is about 1347.1916322056.

The spelling of 2445052169 in words is "two billion, four hundred forty-five million, fifty-two thousand, one hundred sixty-nine".

Divisors: 1 7 349293167 2445052169