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189787892482 = 21672017281719
BaseRepresentation
bin1011000011000000111…
…1010110101100000010
3200010212122101212120001
42300300033112230002
511102141200024412
6223104245110214
716466056316536
oct2606017265402
9603778355501
10189787892482
1173541354721
12309476b836a
1314b876c87c6
149285b07bc6
154e0bb69957
hex2c303d6b02

189787892482 has 16 divisors (see below), whose sum is σ = 286529523840. Its totient is φ = 94278619008.

The previous prime is 189787892479. The next prime is 189787892507. The reversal of 189787892482 is 284298787981.

189787892482 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 532819 + ... + 814537.

It is an arithmetic number, because the mean of its divisors is an integer number (17908095240).

Almost surely, 2189787892482 is an apocalyptic number.

189787892482 is a deficient number, since it is larger than the sum of its proper divisors (96741631358).

189787892482 is a wasteful number, since it uses less digits than its factorization.

189787892482 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 283905.

The product of its digits is 260112384, while the sum is 73.

The spelling of 189787892482 in words is "one hundred eighty-nine billion, seven hundred eighty-seven million, eight hundred ninety-two thousand, four hundred eighty-two".

Divisors: 1 2 167 334 2017 4034 281719 336839 563438 673678 47047073 94094146 568227223 1136454446 94893946241 189787892482