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190730648 = 2379301789
BaseRepresentation
bin10110101111001…
…01000110011000
3111021220010021002
423113211012120
5342311340043
630532004132
74504120013
oct1327450630
9437803232
10190730648
1198731839
1253a60648
1330690194
141b48c37a
1511b27bb8
hexb5e5198

190730648 has 16 divisors (see below), whose sum is σ = 362148000. Its totient is φ = 94157856.

The previous prime is 190730641. The next prime is 190730669. The reversal of 190730648 is 846037091.

190730648 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (190730641) 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, 150263 + ... + 151526.

It is an arithmetic number, because the mean of its divisors is an integer number (22634250).

Almost surely, 2190730648 is an apocalyptic number.

It is an amenable number.

190730648 is a deficient number, since it is larger than the sum of its proper divisors (171417352).

190730648 is a wasteful number, since it uses less digits than its factorization.

190730648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 301874 (or 301870 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 38.

The square root of 190730648 is about 13810.5267097240. The cubic root of 190730648 is about 575.6256811165.

The spelling of 190730648 in words is "one hundred ninety million, seven hundred thirty thousand, six hundred forty-eight".

Divisors: 1 2 4 8 79 158 316 632 301789 603578 1207156 2414312 23841331 47682662 95365324 190730648