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445192093 = 661673513
BaseRepresentation
bin11010100010010…
…001011110011101
31011000201002202001
4122202101132131
51402432121333
6112102002301
714014033063
oct3242213635
91130632661
10445192093
11209332455
12105116391
1371305498
14431aa033
152913db7d
hex1a89179d

445192093 has 4 divisors (see below), whose sum is σ = 445866268. Its totient is φ = 444517920.

The previous prime is 445192087. The next prime is 445192123. The reversal of 445192093 is 390291544.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 386240409 + 58951684 = 19653^2 + 7678^2 .

It is a cyclic number.

It is not a de Polignac number, because 445192093 - 25 = 445192061 is a prime.

It is a super-3 number, since 3×4451920933 (a number of 27 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (445192003) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 336096 + ... + 337417.

It is an arithmetic number, because the mean of its divisors is an integer number (111466567).

Almost surely, 2445192093 is an apocalyptic number.

It is an amenable number.

445192093 is a deficient number, since it is larger than the sum of its proper divisors (674175).

445192093 is an equidigital number, since it uses as much as digits as its factorization.

445192093 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 674174.

The product of its (nonzero) digits is 38880, while the sum is 37.

The square root of 445192093 is about 21099.5756592402. The cubic root of 445192093 is about 763.5705106164.

The spelling of 445192093 in words is "four hundred forty-five million, one hundred ninety-two thousand, ninety-three".

Divisors: 1 661 673513 445192093