Search a number
-
+
19982292 = 22311151381
BaseRepresentation
bin100110000111…
…0011111010100
31101121012112220
41030032133110
520103413132
61552142340
7331563261
oct114163724
941535486
1019982292
1110308aa0
1268379b0
1341a8355
142922268
151b4aa2c
hex130e7d4

19982292 has 24 divisors (see below), whose sum is σ = 50864352. Its totient is φ = 6055200.

The previous prime is 19982279. The next prime is 19982317. The reversal of 19982292 is 29228991.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 75559 + ... + 75822.

It is an arithmetic number, because the mean of its divisors is an integer number (2119348).

Almost surely, 219982292 is an apocalyptic number.

19982292 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

19982292 is an abundant number, since it is smaller than the sum of its proper divisors (30882060).

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

19982292 is a wasteful number, since it uses less digits than its factorization.

19982292 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151399 (or 151397 counting only the distinct ones).

The product of its digits is 46656, while the sum is 42.

The square root of 19982292 is about 4470.1557019862. The cubic root of 19982292 is about 271.3616264924.

The spelling of 19982292 in words is "nineteen million, nine hundred eighty-two thousand, two hundred ninety-two".

Divisors: 1 2 3 4 6 11 12 22 33 44 66 132 151381 302762 454143 605524 908286 1665191 1816572 3330382 4995573 6660764 9991146 19982292