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60143 = 137439
BaseRepresentation
bin1110101011101111
310001111112
432223233
53411033
61142235
7340226
oct165357
9101445
1060143
1141206
122a97b
13214b5
1417cbd
1512c48
hexeaef

60143 has 4 divisors (see below), whose sum is σ = 60720. Its totient is φ = 59568.

The previous prime is 60139. The next prime is 60149. The reversal of 60143 is 34106.

Added to its reverse (34106) it gives a square (94249 = 3072).

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 34106 = 217053.

It is a cyclic number.

It is not a de Polignac number, because 60143 - 22 = 60139 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 (60149) 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, 83 + ... + 356.

It is an arithmetic number, because the mean of its divisors is an integer number (15180).

260143 is an apocalyptic number.

60143 is a deficient number, since it is larger than the sum of its proper divisors (577).

60143 is a wasteful number, since it uses less digits than its factorization.

60143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 576.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 60143 is about 245.2406980907. The cubic root of 60143 is about 39.1797531845.

Adding to 60143 its reverse (34106), we get a palindrome (94249).

The spelling of 60143 in words is "sixty thousand, one hundred forty-three".

Divisors: 1 137 439 60143