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190004473 = 739726833
BaseRepresentation
bin10110101001100…
…11110011111001
3111020112020010201
423110303303321
5342120120343
630504242201
74465003621
oct1324636371
9436466121
10190004473
119828619a
1253770361
13304977a9
141b33d881
1511a3294d
hexb533cf9

190004473 has 8 divisors (see below), whose sum is σ = 194600168. Its totient is φ = 185462784.

The previous prime is 190004467. The next prime is 190004483. The reversal of 190004473 is 374400091.

It can be written as a sum of positive squares in 4 ways, for example, as 4826809 + 185177664 = 2197^2 + 13608^2 .

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 190004473 - 213 = 189996281 is a prime.

It is a super-2 number, since 2×1900044732 = 72203399520015458, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (190004443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6336 + ... + 20497.

It is an arithmetic number, because the mean of its divisors is an integer number (24325021).

Almost surely, 2190004473 is an apocalyptic number.

It is an amenable number.

190004473 is a deficient number, since it is larger than the sum of its proper divisors (4595695).

190004473 is an equidigital number, since it uses as much as digits as its factorization.

190004473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27003.

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 190004473 is about 13784.2110038986. The cubic root of 190004473 is about 574.8942192304.

The spelling of 190004473 in words is "one hundred ninety million, four thousand, four hundred seventy-three".

Divisors: 1 73 97 7081 26833 1958809 2602801 190004473