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189275382 = 23217618547
BaseRepresentation
bin10110100100000…
…01110011110110
3111012011012000100
423102001303312
5341423303012
630440454530
74455546162
oct1322016366
9435135010
10189275382
119792843a
125347a446
13302a098a
141b1cdca2
151193b8dc
hexb481cf6

189275382 has 24 divisors (see below), whose sum is σ = 434220696. Its totient is φ = 59380416.

The previous prime is 189275381. The next prime is 189275407. The reversal of 189275382 is 283572981.

It is a happy number.

189275382 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 (189275381) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 308968 + ... + 309579.

It is an arithmetic number, because the mean of its divisors is an integer number (18092529).

Almost surely, 2189275382 is an apocalyptic number.

189275382 is an abundant number, since it is smaller than the sum of its proper divisors (244945314).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

189275382 is a wasteful number, since it uses less digits than its factorization.

189275382 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 618572 (or 618569 counting only the distinct ones).

The product of its digits is 241920, while the sum is 45.

The square root of 189275382 is about 13757.7389857491. The cubic root of 189275382 is about 574.1579427527.

The spelling of 189275382 in words is "one hundred eighty-nine million, two hundred seventy-five thousand, three hundred eighty-two".

Divisors: 1 2 3 6 9 17 18 34 51 102 153 306 618547 1237094 1855641 3711282 5566923 10515299 11133846 21030598 31545897 63091794 94637691 189275382