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131242982 = 2135047807
BaseRepresentation
bin1111101001010…
…01101111100110
3100010221211112012
413310221233212
5232044233412
621004554222
73152355413
oct764515746
9303854465
10131242982
11680a0882
1237b52972
1321262490
141360510a
15b7c6c22
hex7d29be6

131242982 has 8 divisors (see below), whose sum is σ = 212007936. Its totient is φ = 60573672.

The previous prime is 131242973. The next prime is 131242997. The reversal of 131242982 is 289242131.

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 (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2523878 + ... + 2523929.

It is an arithmetic number, because the mean of its divisors is an integer number (26500992).

Almost surely, 2131242982 is an apocalyptic number.

131242982 is a deficient number, since it is larger than the sum of its proper divisors (80764954).

131242982 is a wasteful number, since it uses less digits than its factorization.

131242982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5047822.

The product of its digits is 6912, while the sum is 32.

The square root of 131242982 is about 11456.1329426644. The cubic root of 131242982 is about 508.1891203798.

The spelling of 131242982 in words is "one hundred thirty-one million, two hundred forty-two thousand, nine hundred eighty-two".

Divisors: 1 2 13 26 5047807 10095614 65621491 131242982