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27831996982 = 240771341321
BaseRepresentation
bin11001111010111010…
…101001001000110110
32122211122210221100001
4121322322221020312
5423444442400412
620441424141514
72003463033226
oct317272511066
978748727301
1027831996982
11108924892a9
125488a6789a
13281718768a
1414c053a086
15acd62c957
hex67aea9236

27831996982 has 8 divisors (see below), whose sum is σ = 41749141752. Its totient is φ = 13915616400.

The previous prime is 27831996971. The next prime is 27831997013. The reversal of 27831996982 is 28969913872.

It is a sphenic number, since it is the product of 3 distinct primes.

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 3 ways as a sum of consecutive naturals, for example, 89119 + ... + 252202.

It is an arithmetic number, because the mean of its divisors is an integer number (5218642719).

Almost surely, 227831996982 is an apocalyptic number.

27831996982 is a deficient number, since it is larger than the sum of its proper divisors (13917144770).

27831996982 is a wasteful number, since it uses less digits than its factorization.

27831996982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 382094.

The product of its digits is 23514624, while the sum is 64.

The spelling of 27831996982 in words is "twenty-seven billion, eight hundred thirty-one million, nine hundred ninety-six thousand, nine hundred eighty-two".

Divisors: 1 2 40771 81542 341321 682642 13915998491 27831996982