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145000293 = 3172843143
BaseRepresentation
bin10001010010010…
…00011101100101
3101002211210000020
420221020131211
5244110002133
622215505353
73410324244
oct1051103545
9332753006
10145000293
1174937959
1240688259
132406b2b9
141538695b
15cae30b3
hex8a48765

145000293 has 8 divisors (see below), whose sum is σ = 204706368. Its totient is φ = 90980544.

The previous prime is 145000291. The next prime is 145000307. The reversal of 145000293 is 392000541.

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

It is not a de Polignac number, because 145000293 - 21 = 145000291 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 (145000291) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1421521 + ... + 1421622.

It is an arithmetic number, because the mean of its divisors is an integer number (25588296).

Almost surely, 2145000293 is an apocalyptic number.

It is an amenable number.

145000293 is a deficient number, since it is larger than the sum of its proper divisors (59706075).

145000293 is a wasteful number, since it uses less digits than its factorization.

145000293 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2843163.

The product of its (nonzero) digits is 1080, while the sum is 24.

The square root of 145000293 is about 12041.6067449489. The cubic root of 145000293 is about 525.3591411114.

The spelling of 145000293 in words is "one hundred forty-five million, two hundred ninety-three", and thus it is an aban number.

Divisors: 1 3 17 51 2843143 8529429 48333431 145000293