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192405193 = 1014118973
BaseRepresentation
bin10110111011111…
…01111011001001
3111102001012022021
423131331323021
5343223431233
631031524441
74524263041
oct1335757311
9442035267
10192405193
1199675962
1254529721
1330b28436
141b7a6721
1511d58e2d
hexb77dec9

192405193 has 4 divisors (see below), whose sum is σ = 192434308. Its totient is φ = 192376080.

The previous prime is 192405181. The next prime is 192405197. The reversal of 192405193 is 391504291.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 50509449 + 141895744 = 7107^2 + 11912^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-192405193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (192405197) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 655 + ... + 19627.

It is an arithmetic number, because the mean of its divisors is an integer number (48108577).

Almost surely, 2192405193 is an apocalyptic number.

It is an amenable number.

192405193 is a deficient number, since it is larger than the sum of its proper divisors (29115).

192405193 is a wasteful number, since it uses less digits than its factorization.

192405193 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29114.

The product of its (nonzero) digits is 9720, while the sum is 34.

The square root of 192405193 is about 13871.0198976139. The cubic root of 192405193 is about 577.3053689680.

The spelling of 192405193 in words is "one hundred ninety-two million, four hundred five thousand, one hundred ninety-three".

Divisors: 1 10141 18973 192405193