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193045085 = 582946573
BaseRepresentation
bin10111000000110…
…10001001011101
3111110020201001222
423200122021131
5343404420320
631053343125
74532566442
oct1340321135
9443221058
10193045085
1199a726a2
1254797aa5
1330cc077c
141b8d19c9
1511e33825
hexb81a25d

193045085 has 8 divisors (see below), whose sum is σ = 231938520. Its totient is φ = 154246464.

The previous prime is 193045067. The next prime is 193045087. The reversal of 193045085 is 580540391.

It can be written as a sum of positive squares in 4 ways, for example, as 1849 + 193043236 = 43^2 + 13894^2 .

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 193045085 - 28 = 193044829 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (193045087) 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, 19142 + ... + 27431.

It is an arithmetic number, because the mean of its divisors is an integer number (28992315).

Almost surely, 2193045085 is an apocalyptic number.

It is an amenable number.

193045085 is a deficient number, since it is larger than the sum of its proper divisors (38893435).

193045085 is an equidigital number, since it uses as much as digits as its factorization.

193045085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47407.

The product of its (nonzero) digits is 21600, while the sum is 35.

The square root of 193045085 is about 13894.0665393541. The cubic root of 193045085 is about 577.9446523312.

It can be divided in two parts, 19304 and 5085, that added together give a cube (24389 = 293).

The spelling of 193045085 in words is "one hundred ninety-three million, forty-five thousand, eighty-five".

Divisors: 1 5 829 4145 46573 232865 38609017 193045085