Search a number
-
+
20181910109282 = 223367619640483
BaseRepresentation
bin1001001011010111101111…
…00101010011110001100010
32122110101001000102112020122
410211223313211103301202
510121130022441444112
6110531235211040242
74152044355314465
oct445536745236142
978411030375218
1020181910109282
11648111112a629
12231b480a40082
13b351b888b35c
144dab499d32dc
1524eea00e7872
hex125af7953c62

20181910109282 has 16 divisors (see below), whose sum is σ = 30403288712160. Its totient is φ = 10047481955232.

The previous prime is 20181910109227. The next prime is 20181910109321. The reversal of 20181910109282 is 28290101918102.

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, 31190213 + ... + 31830695.

It is an arithmetic number, because the mean of its divisors is an integer number (1900205544510).

Almost surely, 220181910109282 is an apocalyptic number.

20181910109282 is a deficient number, since it is larger than the sum of its proper divisors (10221378602878).

20181910109282 is a wasteful number, since it uses less digits than its factorization.

20181910109282 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 708337.

The product of its (nonzero) digits is 41472, while the sum is 44.

The spelling of 20181910109282 in words is "twenty trillion, one hundred eighty-one billion, nine hundred ten million, one hundred nine thousand, two hundred eighty-two".

Divisors: 1 2 233 466 67619 135238 640483 1280966 15755227 31510454 149232539 298465078 43308819977 86617639954 10090955054641 20181910109282