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142748 = 22127281
BaseRepresentation
bin100010110110011100
321020210222
4202312130
514031443
63020512
71133114
oct426634
9236728
10142748
1198281
126a738
134cc88
143a044
152c468
hex22d9c

142748 has 12 divisors (see below), whose sum is σ = 252672. Its totient is φ = 70560.

The previous prime is 142733. The next prime is 142757. The reversal of 142748 is 847241.

142748 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 368 + ... + 648.

It is an arithmetic number, because the mean of its divisors is an integer number (21056).

2142748 is an apocalyptic number.

It is an amenable number.

142748 is a deficient number, since it is larger than the sum of its proper divisors (109924).

142748 is a wasteful number, since it uses less digits than its factorization.

142748 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 412 (or 410 counting only the distinct ones).

The product of its digits is 1792, while the sum is 26.

The square root of 142748 is about 377.8200629930. The cubic root of 142748 is about 52.2624795630.

Adding to 142748 its reverse (847241), we get a palindrome (989989).

The spelling of 142748 in words is "one hundred forty-two thousand, seven hundred forty-eight".

Divisors: 1 2 4 127 254 281 508 562 1124 35687 71374 142748