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82693916578 = 271317197135671
BaseRepresentation
bin100110100000011110…
…0010000011110100010
321220110002012012211001
41031000330100132202
52323324120312303
6101553345342214
75655142456540
oct1150074203642
9256402165731
1082693916578
1132085618519
121403a03796a
137a4b29b5b0
144006866d90
15223ec5131d
hex1340f107a2

82693916578 has 64 divisors (see below), whose sum is σ = 162467762688. Its totient is φ = 30633200640.

The previous prime is 82693916573. The next prime is 82693916579. The reversal of 82693916578 is 87561939628.

It is not an unprimeable number, because it can be changed into a prime (82693916573) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 541683 + ... + 677353.

It is an arithmetic number, because the mean of its divisors is an integer number (2538558792).

It is a narcissistic number, because it is equal to 811 + 211 + 611 + 911 + 311 + 911 + 111 + 611 + 511 + 711 + 811.

Almost surely, 282693916578 is an apocalyptic number.

82693916578 is a deficient number, since it is larger than the sum of its proper divisors (79773846110).

82693916578 is a wasteful number, since it uses less digits than its factorization.

82693916578 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135907.

The product of its digits is 39191040, while the sum is 64.

The spelling of 82693916578 in words is "eighty-two billion, six hundred ninety-three million, nine hundred sixteen thousand, five hundred seventy-eight".

Divisors: 1 2 7 13 14 17 26 34 91 119 182 197 221 238 394 442 1379 1547 2561 2758 3094 3349 5122 6698 17927 23443 35854 43537 46886 87074 135671 271342 304759 609518 949697 1763723 1899394 2306407 3527446 4612814 12346061 16144849 24692122 26727187 29983291 32289698 53454374 59966582 187090309 209883037 347453431 374180618 419766074 454362179 694906862 908724358 2432174017 3180535253 4864348034 5906708327 6361070506 11813416654 41346958289 82693916578