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10206712065 = 351161858861
BaseRepresentation
bin10011000000101111…
…00001000100000001
3222100022201200202210
421200113201010001
5131400404241230
64404445132333
7510634423014
oct114027410401
928308650683
1010206712065
114368471930
121b8a25a0a9
13c687848c4
146cb7b137b
153eb0e0eb0
hex2605e1101

10206712065 has 16 divisors (see below), whose sum is σ = 17815352256. Its totient is φ = 4948708800.

The previous prime is 10206712057. The next prime is 10206712079. The reversal of 10206712065 is 56021760201.

It is not a de Polignac number, because 10206712065 - 23 = 10206712057 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30929266 + ... + 30929595.

It is an arithmetic number, because the mean of its divisors is an integer number (1113459516).

Almost surely, 210206712065 is an apocalyptic number.

10206712065 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

10206712065 is a deficient number, since it is larger than the sum of its proper divisors (7608640191).

10206712065 is a wasteful number, since it uses less digits than its factorization.

10206712065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61858880.

The product of its (nonzero) digits is 5040, while the sum is 30.

The spelling of 10206712065 in words is "ten billion, two hundred six million, seven hundred twelve thousand, sixty-five".

Divisors: 1 3 5 11 15 33 55 165 61858861 185576583 309294305 680447471 927882915 2041342413 3402237355 10206712065