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145066893 = 3127380753
BaseRepresentation
bin10001010010110…
…00101110001101
3101002222011100220
420221120232031
5244114120033
622221141553
73411022356
oct1051305615
9332864326
10145066893
11749829a4
12406ba8b9
13240926ca
14153a2d2d
15cb07bb3
hex8a58b8d

145066893 has 8 divisors (see below), whose sum is σ = 194946048. Its totient is φ = 95949504.

The previous prime is 145066891. The next prime is 145066921. The reversal of 145066893 is 398660541.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 145066893 - 21 = 145066891 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145066891) 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, 189996 + ... + 190757.

It is an arithmetic number, because the mean of its divisors is an integer number (24368256).

Almost surely, 2145066893 is an apocalyptic number.

It is an amenable number.

145066893 is a deficient number, since it is larger than the sum of its proper divisors (49879155).

145066893 is a wasteful number, since it uses less digits than its factorization.

145066893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 380883.

The product of its (nonzero) digits is 155520, while the sum is 42.

The square root of 145066893 is about 12044.3718391621. The cubic root of 145066893 is about 525.4395629334.

The spelling of 145066893 in words is "one hundred forty-five million, sixty-six thousand, eight hundred ninety-three".

Divisors: 1 3 127 381 380753 1142259 48355631 145066893