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192108427 = 727444061
BaseRepresentation
bin10110111001101…
…01011110001011
3111101111010012221
423130311132023
5343134432202
631021314511
74521615610
oct1334653613
9441433187
10192108427
11994929a5
1254405a37
1330a53334
141b72a507
1511ceb037
hexb73578b

192108427 has 4 divisors (see below), whose sum is σ = 219552496. Its totient is φ = 164664360.

The previous prime is 192108421. The next prime is 192108437. The reversal of 192108427 is 724801291.

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

It is not a de Polignac number, because 192108427 - 27 = 192108299 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 192108392 and 192108401.

It is not an unprimeable number, because it can be changed into a prime (192108421) 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 3 ways as a sum of consecutive naturals, for example, 13722024 + ... + 13722037.

It is an arithmetic number, because the mean of its divisors is an integer number (54888124).

Almost surely, 2192108427 is an apocalyptic number.

192108427 is a deficient number, since it is larger than the sum of its proper divisors (27444069).

192108427 is an equidigital number, since it uses as much as digits as its factorization.

192108427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27444068.

The product of its (nonzero) digits is 8064, while the sum is 34.

The square root of 192108427 is about 13860.3184306855. The cubic root of 192108427 is about 577.0084040719.

The spelling of 192108427 in words is "one hundred ninety-two million, one hundred eight thousand, four hundred twenty-seven".

Divisors: 1 7 27444061 192108427