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131429078 = 21110159149
BaseRepresentation
bin1111101010101…
…11001011010110
3100011022021210122
413311113023112
5232121212303
621012551542
73154062104
oct765271326
9304267718
10131429078
1168208680
12380225b2
13212c90b1
1413652c74
15b811e38
hex7d572d6

131429078 has 16 divisors (see below), whose sum is σ = 217198800. Its totient is φ = 59148000.

The previous prime is 131429071. The next prime is 131429093. The reversal of 131429078 is 870924131.

131429078 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 not an unprimeable number, because it can be changed into a prime (131429071) 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, 27353 + ... + 31796.

It is an arithmetic number, because the mean of its divisors is an integer number (13574925).

Almost surely, 2131429078 is an apocalyptic number.

131429078 is a deficient number, since it is larger than the sum of its proper divisors (85769722).

131429078 is a wasteful number, since it uses less digits than its factorization.

131429078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59263.

The product of its (nonzero) digits is 12096, while the sum is 35.

The square root of 131429078 is about 11464.2521779661. The cubic root of 131429078 is about 508.4292025461.

The spelling of 131429078 in words is "one hundred thirty-one million, four hundred twenty-nine thousand, seventy-eight".

Divisors: 1 2 11 22 101 202 1111 2222 59149 118298 650639 1301278 5974049 11948098 65714539 131429078