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19992841 = 119971823
BaseRepresentation
bin100110001000…
…1000100001001
31101121202000121
41030101010021
520104232331
61552303241
7331636111
oct114210411
941552017
1019992841
1110315a10
126841b21
1341b00ab
142926041
151b4dc11
hex1311109

19992841 has 8 divisors (see below), whose sum is σ = 21844224. Its totient is φ = 18147120.

The previous prime is 19992829. The next prime is 19992877. The reversal of 19992841 is 14829991.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 19992841 - 25 = 19992809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (19992881) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10056 + ... + 11878.

It is an arithmetic number, because the mean of its divisors is an integer number (2730528).

Almost surely, 219992841 is an apocalyptic number.

19992841 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

19992841 is a deficient number, since it is larger than the sum of its proper divisors (1851383).

19992841 is a wasteful number, since it uses less digits than its factorization.

19992841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2831.

The product of its digits is 46656, while the sum is 43.

The square root of 19992841 is about 4471.3354828284. The cubic root of 19992841 is about 271.4093702682.

The spelling of 19992841 in words is "nineteen million, nine hundred ninety-two thousand, eight hundred forty-one".

Divisors: 1 11 997 1823 10967 20053 1817531 19992841