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190300105 = 5192003159
BaseRepresentation
bin10110101011110…
…11111111001001
3111021002020200001
423111323333021
5342204100410
630514443001
74500344542
oct1325737711
9437066601
10190300105
1198468316
1253893461
133056c218
141b3b94c9
1511a9033a
hexb57bfc9

190300105 has 8 divisors (see below), whose sum is σ = 240379200. Its totient is φ = 144227376.

The previous prime is 190300081. The next prime is 190300111. The reversal of 190300105 is 501003091.

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 190300105 - 25 = 190300073 is a prime.

It is a super-3 number, since 3×1903001053 (a number of 26 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1001485 + ... + 1001674.

It is an arithmetic number, because the mean of its divisors is an integer number (30047400).

Almost surely, 2190300105 is an apocalyptic number.

It is an amenable number.

190300105 is a deficient number, since it is larger than the sum of its proper divisors (50079095).

190300105 is a wasteful number, since it uses less digits than its factorization.

190300105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2003183.

The product of its (nonzero) digits is 135, while the sum is 19.

The square root of 190300105 is about 13794.9304093932. The cubic root of 190300105 is about 575.1922281047.

Adding to 190300105 its reverse (501003091), we get a palindrome (691303196).

The spelling of 190300105 in words is "one hundred ninety million, three hundred thousand, one hundred five".

Divisors: 1 5 19 95 2003159 10015795 38060021 190300105