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16886947830680 = 235422173695767
BaseRepresentation
bin1111010110111100110010…
…0001101101101110011000
32012210101011102120222122102
43311233030201231232120
54203133432121040210
655525431242142532
73362020211130314
oct365571441555630
965711142528572
1016886947830680
115420794899274
121a889787b1a48
13956580b37ab5
14425492a78b44
151e44055ecea5
hexf5bcc86db98

16886947830680 has 16 divisors (see below), whose sum is σ = 37995632619120. Its totient is φ = 6754779132256.

The previous prime is 16886947830677. The next prime is 16886947830721. The reversal of 16886947830680 is 8603874968861.

It is a super-2 number, since 2×168869478306802 (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 16886947830598 and 16886947830607.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 211086847844 + ... + 211086847923.

It is an arithmetic number, because the mean of its divisors is an integer number (2374727038695).

Almost surely, 216886947830680 is an apocalyptic number.

16886947830680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16886947830680 is an abundant number, since it is smaller than the sum of its proper divisors (21108684788440).

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

16886947830680 is a wasteful number, since it uses less digits than its factorization.

16886947830680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 422173695778 (or 422173695774 counting only the distinct ones).

The product of its (nonzero) digits is 668860416, while the sum is 74.

The spelling of 16886947830680 in words is "sixteen trillion, eight hundred eighty-six billion, nine hundred forty-seven million, eight hundred thirty thousand, six hundred eighty".

Divisors: 1 2 4 5 8 10 20 40 422173695767 844347391534 1688694783068 2110868478835 3377389566136 4221736957670 8443473915340 16886947830680