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147893 = 712083
BaseRepresentation
bin100100000110110101
321111212112
4210012311
514213033
63100405
71154114
oct440665
9244775
10147893
11a1129
1271705
1352415
143bc7b
152dc48
hex241b5

147893 has 4 divisors (see below), whose sum is σ = 150048. Its totient is φ = 145740.

The previous prime is 147881. The next prime is 147919. The reversal of 147893 is 398741.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 398741 = 756963.

It is a cyclic number.

It is not a de Polignac number, because 147893 - 212 = 143797 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (147853) 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, 971 + ... + 1112.

It is an arithmetic number, because the mean of its divisors is an integer number (37512).

2147893 is an apocalyptic number.

It is an amenable number.

147893 is a deficient number, since it is larger than the sum of its proper divisors (2155).

147893 is an equidigital number, since it uses as much as digits as its factorization.

147893 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2154.

The product of its digits is 6048, while the sum is 32.

The square root of 147893 is about 384.5685894610. The cubic root of 147893 is about 52.8829742606.

The spelling of 147893 in words is "one hundred forty-seven thousand, eight hundred ninety-three".

Divisors: 1 71 2083 147893