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148808018 = 2731935281
BaseRepresentation
bin10001101111010…
…10000101010010
3101101000020020002
420313222011102
5301043324033
622433250002
73454563422
oct1067520522
9341006202
10148808018
1176aa8737
1241a03902
1324aa24a8
1415a98482
15d0e63e8
hex8dea152

148808018 has 16 divisors (see below), whose sum is σ = 227485176. Its totient is φ = 72990720.

The previous prime is 148808017. The next prime is 148808027. The reversal of 148808018 is 810808841.

It can be written as a sum of positive squares in 4 ways, for example, as 86918329 + 61889689 = 9323^2 + 7867^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (148808017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25538 + ... + 30818.

Almost surely, 2148808018 is an apocalyptic number.

148808018 is a deficient number, since it is larger than the sum of its proper divisors (78677158).

148808018 is a wasteful number, since it uses less digits than its factorization.

148808018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5549.

The product of its (nonzero) digits is 16384, while the sum is 38.

The square root of 148808018 is about 12198.6891918763. The cubic root of 148808018 is about 529.9181290412.

The spelling of 148808018 in words is "one hundred forty-eight million, eight hundred eight thousand, eighteen".

Divisors: 1 2 73 146 193 386 5281 10562 14089 28178 385513 771026 1019233 2038466 74404009 148808018