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131670384 = 2432743133
BaseRepresentation
bin1111101100100…
…10000101110000
3100011202112210220
413312102011300
5232201423014
621022053040
73156115446
oct766220560
9304675726
10131670384
11683629aa
123811a180
1321381b91
14136b6b96
15b85d6a9
hex7d92170

131670384 has 20 divisors (see below), whose sum is σ = 340148616. Its totient is φ = 43890112.

The previous prime is 131670379. The next prime is 131670401. The reversal of 131670384 is 483076131.

131670384 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1371519 + ... + 1371614.

Almost surely, 2131670384 is an apocalyptic number.

It is an amenable number.

131670384 is an abundant number, since it is smaller than the sum of its proper divisors (208478232).

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

131670384 is a wasteful number, since it uses less digits than its factorization.

131670384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2743144 (or 2743138 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 33.

The square root of 131670384 is about 11474.7716317145. The cubic root of 131670384 is about 508.7401738328.

The spelling of 131670384 in words is "one hundred thirty-one million, six hundred seventy thousand, three hundred eighty-four".

Divisors: 1 2 3 4 6 8 12 16 24 48 2743133 5486266 8229399 10972532 16458798 21945064 32917596 43890128 65835192 131670384