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145893 = 3114421
BaseRepresentation
bin100011100111100101
321102010110
4203213211
514132033
63043233
71145226
oct434745
9242113
10145893
119a680
1270519
1351537
143b24d
152d363
hex239e5

145893 has 8 divisors (see below), whose sum is σ = 212256. Its totient is φ = 88400.

The previous prime is 145879. The next prime is 145897. The reversal of 145893 is 398541.

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

It is a cyclic number.

It is not a de Polignac number, because 145893 - 25 = 145861 is a prime.

145893 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 145893.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145897) 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, 2178 + ... + 2243.

It is an arithmetic number, because the mean of its divisors is an integer number (26532).

2145893 is an apocalyptic number.

It is an amenable number.

145893 is a deficient number, since it is larger than the sum of its proper divisors (66363).

145893 is a wasteful number, since it uses less digits than its factorization.

145893 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4435.

The product of its digits is 4320, while the sum is 30.

The square root of 145893 is about 381.9594219286. The cubic root of 145893 is about 52.6435075945.

It can be divided in two parts, 1458 and 93, that added together give a palindrome (1551).

The spelling of 145893 in words is "one hundred forty-five thousand, eight hundred ninety-three".

Divisors: 1 3 11 33 4421 13263 48631 145893