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19976082 = 237475621
BaseRepresentation
bin100110000110…
…0111110010010
31101120220000220
41030030332102
520103213312
61552053510
7331536210
oct114147622
941526026
1019976082
1110304365
126834296
1341a5589
14291dcb0
151b48c8c
hex130cf92

19976082 has 16 divisors (see below), whose sum is σ = 45659712. Its totient is φ = 5707440.

The previous prime is 19976069. The next prime is 19976093. The reversal of 19976082 is 28067991.

It is a Harshad number since it is a multiple of its sum of digits (42), and also a Moran number because the ratio is a prime number: 475621 = 19976082 / (1 + 9 + 9 + 7 + 6 + 0 + 8 + 2).

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, 237769 + ... + 237852.

It is an arithmetic number, because the mean of its divisors is an integer number (2853732).

Almost surely, 219976082 is an apocalyptic number.

19976082 is an abundant number, since it is smaller than the sum of its proper divisors (25683630).

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

19976082 is a wasteful number, since it uses less digits than its factorization.

19976082 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 475633.

The product of its (nonzero) digits is 54432, while the sum is 42.

The square root of 19976082 is about 4469.4610413337. The cubic root of 19976082 is about 271.3335127621. Note that the first 3 decimals are identical.

The spelling of 19976082 in words is "nineteen million, nine hundred seventy-six thousand, eighty-two".

Divisors: 1 2 3 6 7 14 21 42 475621 951242 1426863 2853726 3329347 6658694 9988041 19976082