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148194701 = 891665109
BaseRepresentation
bin10001101010101…
…00010110001101
3101022212001220122
420311110112031
5300414212301
622412154325
73446430344
oct1065242615
9338761818
10148194701
1176719966
12417689a5
1324919295
1415978b5b
15d02481b
hex8d5458d

148194701 has 4 divisors (see below), whose sum is σ = 149859900. Its totient is φ = 146529504.

The previous prime is 148194689. The next prime is 148194719. The reversal of 148194701 is 107491841.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 107491841 = 839128119.

It can be written as a sum of positive squares in 2 ways, for example, as 10719076 + 137475625 = 3274^2 + 11725^2 .

It is a cyclic number.

It is not a de Polignac number, because 148194701 - 222 = 144000397 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (148194721) 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 3 ways as a sum of consecutive naturals, for example, 832466 + ... + 832643.

It is an arithmetic number, because the mean of its divisors is an integer number (37464975).

Almost surely, 2148194701 is an apocalyptic number.

It is an amenable number.

148194701 is a deficient number, since it is larger than the sum of its proper divisors (1665199).

148194701 is an equidigital number, since it uses as much as digits as its factorization.

148194701 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1665198.

The product of its (nonzero) digits is 8064, while the sum is 35.

The square root of 148194701 is about 12173.5245923274. The cubic root of 148194701 is about 529.1891017196.

The spelling of 148194701 in words is "one hundred forty-eight million, one hundred ninety-four thousand, seven hundred one".

Divisors: 1 89 1665109 148194701