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131483439 = 3319733511
BaseRepresentation
bin1111101011001…
…00011100101111
3100011102001101000
413311210130233
5232124432224
621014051343
73154406433
oct765443457
9304361330
10131483439
11682454aa
1238049b53
1321317a69
14136689c3
15b8230c9
hex7d6472f

131483439 has 32 divisors (see below), whose sum is σ = 207910400. Its totient is φ = 81881280.

The previous prime is 131483437. The next prime is 131483441. The reversal of 131483439 is 934384131.

131483439 is a `hidden beast` number, since 131 + 483 + 43 + 9 = 666.

It is an interprime number because it is at equal distance from previous prime (131483437) and next prime (131483441).

It is not a de Polignac number, because 131483439 - 21 = 131483437 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131483437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 35694 + ... + 39204.

It is an arithmetic number, because the mean of its divisors is an integer number (6497200).

Almost surely, 2131483439 is an apocalyptic number.

131483439 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

131483439 is a deficient number, since it is larger than the sum of its proper divisors (76426961).

131483439 is a wasteful number, since it uses less digits than its factorization.

131483439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3612 (or 3606 counting only the distinct ones).

The product of its digits is 31104, while the sum is 36.

The square root of 131483439 is about 11466.6228245286. The cubic root of 131483439 is about 508.4992908162.

The spelling of 131483439 in words is "one hundred thirty-one million, four hundred eighty-three thousand, four hundred thirty-nine".

Divisors: 1 3 9 19 27 57 73 171 219 513 657 1387 1971 3511 4161 10533 12483 31599 37449 66709 94797 200127 256303 600381 768909 1801143 2306727 4869757 6920181 14609271 43827813 131483439