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6809169952 = 2513101916063
BaseRepresentation
bin1100101011101101…
…11011000000100000
3122120112122200011201
412111312323000200
5102421121414302
63043400050544
7330510663304
oct62566730040
918515580151
106809169952
112984665192
1213a0463a54
1384690c760
14488483d04
1529cbc1c87
hex195dbb020

6809169952 has 48 divisors (see below), whose sum is σ = 14451816960. Its totient is φ = 3139414272.

The previous prime is 6809169949. The next prime is 6809169959. The reversal of 6809169952 is 2599619086.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 6809169893 and 6809169902.

It is not an unprimeable number, because it can be changed into a prime (6809169959) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 415873 + ... + 431935.

It is an arithmetic number, because the mean of its divisors is an integer number (301079520).

Almost surely, 26809169952 is an apocalyptic number.

It is an amenable number.

6809169952 is an abundant number, since it is smaller than the sum of its proper divisors (7642647008).

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

6809169952 is a wasteful number, since it uses less digits than its factorization.

6809169952 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17105 (or 17097 counting only the distinct ones).

The product of its (nonzero) digits is 2099520, while the sum is 55.

The square root of 6809169952 is about 82517.6947811801. The cubic root of 6809169952 is about 1895.3877001155.

The spelling of 6809169952 in words is "six billion, eight hundred nine million, one hundred sixty-nine thousand, nine hundred fifty-two".

Divisors: 1 2 4 8 13 16 26 32 52 104 208 416 1019 2038 4076 8152 13247 16063 16304 26494 32126 32608 52988 64252 105976 128504 208819 211952 257008 417638 423904 514016 835276 1670552 3341104 6682208 16368197 32736394 65472788 130945576 212786561 261891152 425573122 523782304 851146244 1702292488 3404584976 6809169952