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131849230 = 2527747599
BaseRepresentation
bin1111101101111…
…01110000001110
3100012002122010211
413312331300032
5232223133410
621025553034
73160462042
oct766756016
9305078124
10131849230
1168475307
12381a577a
13214153c6
1413722022
15b89668a
hex7dbdc0e

131849230 has 16 divisors (see below), whose sum is σ = 238190400. Its totient is φ = 52548192.

The previous prime is 131849219. The next prime is 131849239. The reversal of 131849230 is 32948131.

It is a junction number, because it is equal to n+sod(n) for n = 131849192 and 131849201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131849239) 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 7 ways as a sum of consecutive naturals, for example, 21030 + ... + 26569.

It is an arithmetic number, because the mean of its divisors is an integer number (14886900).

Almost surely, 2131849230 is an apocalyptic number.

131849230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131849230 is a deficient number, since it is larger than the sum of its proper divisors (106341170).

131849230 is a wasteful number, since it uses less digits than its factorization.

131849230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47883.

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 131849230 is about 11482.5619963491. The cubic root of 131849230 is about 508.9704077912.

The spelling of 131849230 in words is "one hundred thirty-one million, eight hundred forty-nine thousand, two hundred thirty".

Divisors: 1 2 5 10 277 554 1385 2770 47599 95198 237995 475990 13184923 26369846 65924615 131849230