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192918946441 = 1314839918957
BaseRepresentation
bin1011001110101011011…
…1011000001010001001
3200102221212000220010111
42303222313120022021
511130044222241231
6224343054314321
716636465662664
oct2635267301211
9612855026114
10192918946441
11748a8796921
12314801b89a1
13152662a7460
1494a18a66db
1550419994b1
hex2ceadd8289

192918946441 has 4 divisors (see below), whose sum is σ = 207758865412. Its totient is φ = 178079027472.

The previous prime is 192918946411. The next prime is 192918946447. The reversal of 192918946441 is 144649819291.

192918946441 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 144649819291 = 334743217753.

It can be written as a sum of positive squares in 2 ways, for example, as 13248930816 + 179670015625 = 115104^2 + 423875^2 .

It is a cyclic number.

It is not a de Polignac number, because 192918946441 - 27 = 192918946313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (192918946447) 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, 7419959466 + ... + 7419959491.

It is an arithmetic number, because the mean of its divisors is an integer number (51939716353).

Almost surely, 2192918946441 is an apocalyptic number.

It is an amenable number.

192918946441 is a deficient number, since it is larger than the sum of its proper divisors (14839918971).

192918946441 is a wasteful number, since it uses less digits than its factorization.

192918946441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14839918970.

The product of its digits is 4478976, while the sum is 58.

The spelling of 192918946441 in words is "one hundred ninety-two billion, nine hundred eighteen million, nine hundred forty-six thousand, four hundred forty-one".

Divisors: 1 13 14839918957 192918946441