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8381386375 = 53271247421
BaseRepresentation
bin1111100111001000…
…11100111010000111
3210122010001112122121
413303210130322013
5114131113331000
63503402110411
7414461415535
oct76344347207
923563045577
108381386375
11361108a6aa
12175aaab407
13a3756832b
145971c5155
15340c33b1a
hex1f391ce87

8381386375 has 16 divisors (see below), whose sum is σ = 10498610304. Its totient is φ = 6680340000.

The previous prime is 8381386357. The next prime is 8381386399. The reversal of 8381386375 is 5736831838.

It is not a de Polignac number, because 8381386375 - 211 = 8381384327 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 89836 + ... + 157585.

It is an arithmetic number, because the mean of its divisors is an integer number (656163144).

Almost surely, 28381386375 is an apocalyptic number.

8381386375 is a deficient number, since it is larger than the sum of its proper divisors (2117223929).

8381386375 is a wasteful number, since it uses less digits than its factorization.

8381386375 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 247707 (or 247697 counting only the distinct ones).

The product of its digits is 2903040, while the sum is 52.

The square root of 8381386375 is about 91549.9119333274. The cubic root of 8381386375 is about 2031.2901095038.

The spelling of 8381386375 in words is "eight billion, three hundred eighty-one million, three hundred eighty-six thousand, three hundred seventy-five".

Divisors: 1 5 25 125 271 1355 6775 33875 247421 1237105 6185525 30927625 67051091 335255455 1676277275 8381386375