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19982929 = 236114243
BaseRepresentation
bin100110000111…
…0101001010001
31101121020102111
41030032221101
520103423204
61552145321
7331565161
oct114165121
941536374
1019982929
111030951a
126838241
1341a8725
1429225a1
151b4ad04
hex130ea51

19982929 has 8 divisors (see below), whose sum is σ = 21195072. Its totient is φ = 18799440.

The previous prime is 19982899. The next prime is 19982933. The reversal of 19982929 is 92928991.

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 19982929 - 223 = 11594321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (19982959) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5719 + ... + 8524.

It is an arithmetic number, because the mean of its divisors is an integer number (2649384).

Almost surely, 219982929 is an apocalyptic number.

It is an amenable number.

19982929 is a deficient number, since it is larger than the sum of its proper divisors (1212143).

19982929 is a wasteful number, since it uses less digits than its factorization.

19982929 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14327.

The product of its digits is 209952, while the sum is 49.

The square root of 19982929 is about 4470.2269517330. The cubic root of 19982929 is about 271.3645099707.

The spelling of 19982929 in words is "nineteen million, nine hundred eighty-two thousand, nine hundred twenty-nine".

Divisors: 1 23 61 1403 14243 327589 868823 19982929