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192889718841 = 31391735926647
BaseRepresentation
bin1011001110100100011…
…1111000100000111001
3200102212211000222101210
42303221013320200321
511130014232000331
6224340132033333
716635662362221
oct2635107704071
9612784028353
10192889718841
1174893243786
1231472462849
1315260212c11
14949ba59081
15503e124446
hex2ce91f8839

192889718841 has 16 divisors (see below), whose sum is σ = 259061196800. Its totient is φ = 127655869968.

The previous prime is 192889718839. The next prime is 192889718863. The reversal of 192889718841 is 148817988291.

It is a happy number.

192889718841 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 192889718841 - 21 = 192889718839 is a prime.

It is a Smith number, since the sum of its digits (66) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (192889918841) 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 15 ways as a sum of consecutive naturals, for example, 7225380 + ... + 7252026.

It is an arithmetic number, because the mean of its divisors is an integer number (16191324800).

Almost surely, 2192889718841 is an apocalyptic number.

It is an amenable number.

192889718841 is a deficient number, since it is larger than the sum of its proper divisors (66171477959).

192889718841 is a wasteful number, since it uses less digits than its factorization.

192889718841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44148.

The product of its digits is 18579456, while the sum is 66.

The spelling of 192889718841 in words is "one hundred ninety-two billion, eight hundred eighty-nine million, seven hundred eighteen thousand, eight hundred forty-one".

Divisors: 1 3 139 417 17359 26647 52077 79941 2412901 3703933 7238703 11111799 462565273 1387695819 64296572947 192889718841