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7682868115749 = 32232367211981
BaseRepresentation
bin110111111001100111010…
…0111111111100100100101
31000012110211021210111000200
41233303032213333210211
52001334003214200444
624201243315101113
71422032430323301
oct157631647774445
930173737714020
107682868115749
1124a2316839812
12a40ba8ba1799
13439650676b48
141c7bd212ad01
15d4cb072c969
hex6fcce9ff925

7682868115749 has 54 divisors (see below), whose sum is σ = 11633620630086. Its totient is φ = 4885463072160.

The previous prime is 7682868115717. The next prime is 7682868115753. The reversal of 7682868115749 is 9475118682867.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 7618742682849 + 64125432900 = 2760207^2 + 253230^2 .

It is not a de Polignac number, because 7682868115749 - 25 = 7682868115717 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7682868115759) by changing a digit.

It is a polite number, since it can be written in 53 ways as a sum of consecutive naturals, for example, 641248339 + ... + 641260319.

Almost surely, 27682868115749 is an apocalyptic number.

It is an amenable number.

7682868115749 is a deficient number, since it is larger than the sum of its proper divisors (3950752514337).

7682868115749 is a wasteful number, since it uses less digits than its factorization.

7682868115749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12767 (or 12374 counting only the distinct ones).

The product of its digits is 325140480, while the sum is 72.

The spelling of 7682868115749 in words is "seven trillion, six hundred eighty-two billion, eight hundred sixty-eight million, one hundred fifteen thousand, seven hundred forty-nine".

Divisors: 1 3 9 23 69 207 367 529 1101 1587 3303 4761 8441 11981 25323 35943 75969 107829 134689 194143 275563 404067 582429 826689 1212201 1747287 2480067 3097847 4397027 6337949 9293541 13191081 19013847 27880623 39573243 57041541 71250481 101131621 213751443 303394863 641254329 910184589 1613708909 2326027283 4841126727 6978081849 14523380181 20934245547 37115304907 111345914721 334037744163 853652012861 2560956038583 7682868115749