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19483030979 = 831229190997
BaseRepresentation
bin10010001001010001…
…110111010111000011
31212021210202112001222
4102021101313113003
5304400123442404
612541140545255
71256544013406
oct221121672703
955253675058
1019483030979
1182987325a5
1239389b222b
131ab6560bc9
14d2b793d3d
1579069edbe
hex4894775c3

19483030979 has 8 divisors (see below), whose sum is σ = 19733913360. Its totient is φ = 19232533216.

The previous prime is 19483030967. The next prime is 19483030993. The reversal of 19483030979 is 97903038491.

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 19483030979 - 212 = 19483026883 is a prime.

It is a super-2 number, since 2×194830309792 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 19483030979.

It is not an unprimeable number, because it can be changed into a prime (19483030909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6509 + ... + 197505.

It is an arithmetic number, because the mean of its divisors is an integer number (2466739170).

Almost surely, 219483030979 is an apocalyptic number.

19483030979 is a deficient number, since it is larger than the sum of its proper divisors (250882381).

19483030979 is a wasteful number, since it uses less digits than its factorization.

19483030979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 192309.

The product of its (nonzero) digits is 1469664, while the sum is 53.

The spelling of 19483030979 in words is "nineteen billion, four hundred eighty-three million, thirty thousand, nine hundred seventy-nine".

Divisors: 1 83 1229 102007 190997 15852751 234735313 19483030979