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131424163 = 1373791753
BaseRepresentation
bin1111101010101…
…01111110100011
3100011022001001121
413311111332203
5232121033123
621012513111
73154041553
oct765257643
9304261047
10131424163
1168204a12
123801b797
13212c6aa0
1413651163
15b81075d
hex7d55fa3

131424163 has 16 divisors (see below), whose sum is σ = 145371520. Its totient is φ = 118070784.

The previous prime is 131424119. The next prime is 131424169. The reversal of 131424163 is 361424131.

It is a de Polignac number, because none of the positive numbers 2k-131424163 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131424169) 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, 74095 + ... + 75847.

It is an arithmetic number, because the mean of its divisors is an integer number (9085720).

Almost surely, 2131424163 is an apocalyptic number.

131424163 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

131424163 is a deficient number, since it is larger than the sum of its proper divisors (13947357).

131424163 is a wasteful number, since it uses less digits than its factorization.

131424163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1918.

The product of its digits is 1728, while the sum is 25.

The square root of 131424163 is about 11464.0378139642. The cubic root of 131424163 is about 508.4228646267.

Adding to 131424163 its reverse (361424131), we get a palindrome (492848294).

The spelling of 131424163 in words is "one hundred thirty-one million, four hundred twenty-four thousand, one hundred sixty-three".

Divisors: 1 13 73 79 949 1027 1753 5767 22789 74971 127969 138487 1663597 1800331 10109551 131424163