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190633249 = 138072
BaseRepresentation
bin10110101110011…
…01010100100001
3111021201011122201
423113031110201
5342300230444
630525533201
74503233032
oct1327152441
9437634581
10190633249
1198675644
1253a14201
1330657a51
141b464a89
1511b08dd4
hexb5cd521

190633249 has 3 divisors (see below), whose sum is σ = 190647057. Its totient is φ = 190619442.

The previous prime is 190633243. The next prime is 190633253. The reversal of 190633249 is 942336091.

The square root of 190633249 is 13807.

It is a perfect power (a square), and thus also a powerful number.

190633249 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 a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 190633249 - 221 = 188536097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (190633243) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 6904 + ... + 20710.

It is an arithmetic number, because the mean of its divisors is an integer number (63549019).

Almost surely, 2190633249 is an apocalyptic number.

190633249 is the 13807-th square number.

190633249 is the 6904-th centered octagonal number.

It is an amenable number.

190633249 is a deficient number, since it is larger than the sum of its proper divisors (13808).

190633249 is an frugal number, since it uses more digits than its factorization.

190633249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27614 (or 13807 counting only the distinct ones).

The product of its (nonzero) digits is 34992, while the sum is 37.

The cubic root of 190633249 is about 575.5276809393.

The spelling of 190633249 in words is "one hundred ninety million, six hundred thirty-three thousand, two hundred forty-nine".

Divisors: 1 13807 190633249