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190688670841 = 431442433111
BaseRepresentation
bin1011000110010111101…
…1100011010001111001
3200020012102101011011111
42301211323203101321
511111012244431331
6223333504000321
716530304646524
oct2614573432171
9606172334144
10190688670841
1173963868849
1230b593000a1
1314c9c205556
14932d5c7bbb
154e60c9bdb1
hex2c65ee3479

190688670841 has 4 divisors (see below), whose sum is σ = 191131104384. Its totient is φ = 190246237300.

The previous prime is 190688670839. The next prime is 190688670859. The reversal of 190688670841 is 148076886091.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 190688670841 - 21 = 190688670839 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (190688670811) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 221216125 + ... + 221216986.

It is an arithmetic number, because the mean of its divisors is an integer number (47782776096).

Almost surely, 2190688670841 is an apocalyptic number.

It is an amenable number.

190688670841 is a deficient number, since it is larger than the sum of its proper divisors (442433543).

190688670841 is an equidigital number, since it uses as much as digits as its factorization.

190688670841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 442433542.

The product of its (nonzero) digits is 4644864, while the sum is 58.

The spelling of 190688670841 in words is "one hundred ninety billion, six hundred eighty-eight million, six hundred seventy thousand, eight hundred forty-one".

Divisors: 1 431 442433111 190688670841