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12047982 = 2397127163
BaseRepresentation
bin101101111101…
…011001101110
3211200002201120
4231331121232
511041013412
61110121410
7204256212
oct55753156
924602646
1012047982
116889911
124050266
13265aaab
141858942
1510ceb8c
hexb7d66e

12047982 has 32 divisors (see below), whose sum is σ = 24686592. Its totient is φ = 3919104.

The previous prime is 12047941. The next prime is 12047983. The reversal of 12047982 is 28974021.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12047983) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 73833 + ... + 73995.

It is an arithmetic number, because the mean of its divisors is an integer number (771456).

Almost surely, 212047982 is an apocalyptic number.

12047982 is an abundant number, since it is smaller than the sum of its proper divisors (12638610).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12047982 is a wasteful number, since it uses less digits than its factorization.

12047982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 392.

The product of its (nonzero) digits is 8064, while the sum is 33.

The square root of 12047982 is about 3471.0203110901. The cubic root of 12047982 is about 229.2475853673.

The spelling of 12047982 in words is "twelve million, forty-seven thousand, nine hundred eighty-two".

Divisors: 1 2 3 6 97 127 163 194 254 291 326 381 489 582 762 978 12319 15811 20701 24638 31622 36957 41402 47433 62103 73914 94866 124206 2007997 4015994 6023991 12047982