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6668757275 = 521997144737
BaseRepresentation
bin1100011010111110…
…10010100100011011
3122012202102222012012
412031133102210123
5102124200213100
63021422340135
7324154334015
oct61537224433
918182388165
106668757275
112912381054
12136142a64b
138237b962b
144739731b5
152906d8135
hex18d7d291b

6668757275 has 24 divisors (see below), whose sum is σ = 8794280880. Its totient is φ = 5002076160.

The previous prime is 6668757253. The next prime is 6668757299. The reversal of 6668757275 is 5727578666.

It is not a de Polignac number, because 6668757275 - 214 = 6668740891 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 26294 + ... + 118443.

It is an arithmetic number, because the mean of its divisors is an integer number (366428370).

Almost surely, 26668757275 is an apocalyptic number.

6668757275 is a deficient number, since it is larger than the sum of its proper divisors (2125523605).

6668757275 is a wasteful number, since it uses less digits than its factorization.

6668757275 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144863 (or 144858 counting only the distinct ones).

The product of its digits is 29635200, while the sum is 59.

The square root of 6668757275 is about 81662.4593984286. The cubic root of 6668757275 is about 1882.2687709774.

The spelling of 6668757275 in words is "six billion, six hundred sixty-eight million, seven hundred fifty-seven thousand, two hundred seventy-five".

Divisors: 1 5 19 25 95 97 475 485 1843 2425 9215 46075 144737 723685 2750003 3618425 13750015 14039489 68750075 70197445 266750291 350987225 1333751455 6668757275