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190090092 = 22315840841
BaseRepresentation
bin10110101010010…
…00101101101100
3111020200120120210
423111020231230
5342130340332
630510142420
74465511343
oct1325105554
9436616523
10190090092
1198334555
12537b1a10
13304c775a
141b362b5a
1511a4cecc
hexb548b6c

190090092 has 12 divisors (see below), whose sum is σ = 443543576. Its totient is φ = 63363360.

The previous prime is 190090067. The next prime is 190090093. The reversal of 190090092 is 290090091.

190090092 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×1900900922 = 72268486153136928, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (190090093) 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, 7920409 + ... + 7920432.

Almost surely, 2190090092 is an apocalyptic number.

190090092 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

190090092 is an abundant number, since it is smaller than the sum of its proper divisors (253453484).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

190090092 is a wasteful number, since it uses less digits than its factorization.

190090092 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15840848 (or 15840846 counting only the distinct ones).

The product of its (nonzero) digits is 1458, while the sum is 30.

The square root of 190090092 is about 13787.3163451050. The cubic root of 190090092 is about 574.9805583849.

Subtracting 190090092 from its reverse (290090091), we obtain a palindrome (99999999).

The spelling of 190090092 in words is "one hundred ninety million, ninety thousand, ninety-two".

Divisors: 1 2 3 4 6 12 15840841 31681682 47522523 63363364 95045046 190090092