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189289383 = 3891036883
BaseRepresentation
bin10110100100001…
…01001110100111
3111012011220012220
423102011032213
5341424230013
630441043423
74455635043
oct1322051647
9435156186
10189289383
1197937a08
1253486573
13302a716a
141b1d5023
1511940b23
hexb4853a7

189289383 has 16 divisors (see below), whose sum is σ = 257736960. Its totient is φ = 123545664.

The previous prime is 189289369. The next prime is 189289411. The reversal of 189289383 is 383982981.

189289383 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 189289383 - 26 = 189289319 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189289363) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24060 + ... + 30942.

It is an arithmetic number, because the mean of its divisors is an integer number (16108560).

Almost surely, 2189289383 is an apocalyptic number.

189289383 is a deficient number, since it is larger than the sum of its proper divisors (68447577).

189289383 is a wasteful number, since it uses less digits than its factorization.

189289383 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7078.

The product of its digits is 746496, while the sum is 51.

The square root of 189289383 is about 13758.2478172186. The cubic root of 189289383 is about 574.1720995280.

The spelling of 189289383 in words is "one hundred eighty-nine million, two hundred eighty-nine thousand, three hundred eighty-three".

Divisors: 1 3 89 103 267 309 6883 9167 20649 27501 612587 708949 1837761 2126847 63096461 189289383