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17769680961 = 317489338683
BaseRepresentation
bin10000100011001001…
…111101000001000001
31200212101210022200220
4100203021331001001
5242343014242321
612055133533253
71166230540014
oct204311750101
950771708626
1017769680961
11759958134a
12353b044229
1318a25bc026
14c07dd537b
156e00609c6
hex42327d041

17769680961 has 8 divisors (see below), whose sum is σ = 23694332640. Its totient is φ = 11845741632.

The previous prime is 17769680959. The next prime is 17769681031. The reversal of 17769680961 is 16908696771.

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

It is not a de Polignac number, because 17769680961 - 21 = 17769680959 is a prime.

It is a super-2 number, since 2×177696809612 (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 17769680895 and 17769680904.

It is not an unprimeable number, because it can be changed into a prime (17769280961) by changing a digit.

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, 116875 + ... + 221808.

It is an arithmetic number, because the mean of its divisors is an integer number (2961791580).

Almost surely, 217769680961 is an apocalyptic number.

It is an amenable number.

17769680961 is a deficient number, since it is larger than the sum of its proper divisors (5924651679).

17769680961 is a wasteful number, since it uses less digits than its factorization.

17769680961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 356175.

The product of its (nonzero) digits is 6858432, while the sum is 60.

The spelling of 17769680961 in words is "seventeen billion, seven hundred sixty-nine million, six hundred eighty thousand, nine hundred sixty-one".

Divisors: 1 3 17489 52467 338683 1016049 5923226987 17769680961