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145093 = 1311161
BaseRepresentation
bin100011011011000101
321101000211
4203123011
514120333
63035421
71143004
oct433305
9241024
10145093
119a013
126bb71
1351070
143ac3b
152cecd
hex236c5

145093 has 4 divisors (see below), whose sum is σ = 156268. Its totient is φ = 133920.

The previous prime is 145091. The next prime is 145109. The reversal of 145093 is 390541.

145093 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 390541 = 1722973.

It can be written as a sum of positive squares in 2 ways, for example, as 10404 + 134689 = 102^2 + 367^2 .

It is a cyclic number.

It is not a de Polignac number, because 145093 - 21 = 145091 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 (145091) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5568 + ... + 5593.

It is an arithmetic number, because the mean of its divisors is an integer number (39067).

2145093 is an apocalyptic number.

145093 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

145093 is a deficient number, since it is larger than the sum of its proper divisors (11175).

145093 is a wasteful number, since it uses less digits than its factorization.

145093 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11174.

The product of its (nonzero) digits is 540, while the sum is 22.

The square root of 145093 is about 380.9107507015. The cubic root of 145093 is about 52.5471081331.

The spelling of 145093 in words is "one hundred forty-five thousand, ninety-three".

Divisors: 1 13 11161 145093