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189830075 = 52171273517
BaseRepresentation
bin10110101000010…
…01001110111011
3111020012100220112
423110021032323
5342044030300
630500414535
74463346311
oct1324111673
9436170815
10189830075
1198177166
12536a744b
13304362b6
141b2d60b1
15119eae35
hexb5093bb

189830075 has 24 divisors (see below), whose sum is σ = 251269632. Its totient is φ = 141765120.

The previous prime is 189830059. The next prime is 189830087. The reversal of 189830075 is 570038981.

It is a happy number.

It is not a de Polignac number, because 189830075 - 24 = 189830059 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 52217 + ... + 55733.

It is an arithmetic number, because the mean of its divisors is an integer number (10469568).

Almost surely, 2189830075 is an apocalyptic number.

189830075 is a deficient number, since it is larger than the sum of its proper divisors (61439557).

189830075 is a wasteful number, since it uses less digits than its factorization.

189830075 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3671 (or 3666 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 41.

The square root of 189830075 is about 13777.8835457410. The cubic root of 189830075 is about 574.7182740869.

The spelling of 189830075 in words is "one hundred eighty-nine million, eight hundred thirty thousand, seventy-five".

Divisors: 1 5 17 25 85 127 425 635 2159 3175 3517 10795 17585 53975 59789 87925 298945 446659 1494725 2233295 7593203 11166475 37966015 189830075