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189508244 = 22193245477
BaseRepresentation
bin10110100101110…
…10101010010100
3111012121000102212
423102322222110
5342003230434
630445452552
74460536112
oct1322725224
9435530385
10189508244
1197a77392
1253571158
1330352973
141b250ab2
15119858ce
hexb4baa94

189508244 has 12 divisors (see below), whose sum is σ = 333359124. Its totient is φ = 94262784.

The previous prime is 189508237. The next prime is 189508259. The reversal of 189508244 is 442805981.

189508244 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 49984900 + 139523344 = 7070^2 + 11812^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 121967 + ... + 123510.

It is an arithmetic number, because the mean of its divisors is an integer number (27779927).

Almost surely, 2189508244 is an apocalyptic number.

It is an amenable number.

189508244 is a deficient number, since it is larger than the sum of its proper divisors (143850880).

189508244 is a wasteful number, since it uses less digits than its factorization.

189508244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 245674 (or 245672 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 41.

The square root of 189508244 is about 13766.1993302436. The cubic root of 189508244 is about 574.3933048893.

The spelling of 189508244 in words is "one hundred eighty-nine million, five hundred eight thousand, two hundred forty-four".

Divisors: 1 2 4 193 386 772 245477 490954 981908 47377061 94754122 189508244