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680046165 = 3357170949
BaseRepresentation
bin101000100010001…
…010111001010101
31202101121220222000
4220202022321111
52343042434130
6151251425513
722565203611
oct5042127125
91671556860
10680046165
11319960827
1216b8b5299
13aab73ca6
1466462341
153ea80260
hex2888ae55

680046165 has 32 divisors (see below), whose sum is σ = 1226016000. Its totient is φ = 357577920.

The previous prime is 680046151. The next prime is 680046187. The reversal of 680046165 is 561640086.

It is not a de Polignac number, because 680046165 - 28 = 680045909 is a prime.

It is a super-3 number, since 3×6800461653 (a number of 27 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 25890 + ... + 45059.

It is an arithmetic number, because the mean of its divisors is an integer number (38313000).

Almost surely, 2680046165 is an apocalyptic number.

It is an amenable number.

680046165 is a deficient number, since it is larger than the sum of its proper divisors (545969835).

680046165 is a wasteful number, since it uses less digits than its factorization.

680046165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71034 (or 71028 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The square root of 680046165 is about 26077.6947792553. The cubic root of 680046165 is about 879.3858339462.

The spelling of 680046165 in words is "six hundred eighty million, forty-six thousand, one hundred sixty-five".

Divisors: 1 3 5 9 15 27 45 71 135 213 355 639 1065 1917 3195 9585 70949 212847 354745 638541 1064235 1915623 3192705 5037379 9578115 15112137 25186895 45336411 75560685 136009233 226682055 680046165