Search a number
-
+
142656 = 263743
BaseRepresentation
bin100010110101000000
321020200120
4202311000
514031111
63020240
71132623
oct426500
9236616
10142656
11981a8
126a680
134cc17
1439dba
152c406
hex22d40

142656 has 28 divisors (see below), whose sum is σ = 377952. Its totient is φ = 47488.

The previous prime is 142619. The next prime is 142657. The reversal of 142656 is 656241.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142657) 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, 180 + ... + 563.

2142656 is an apocalyptic number.

142656 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

142656 is an abundant number, since it is smaller than the sum of its proper divisors (235296).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

142656 is an equidigital number, since it uses as much as digits as its factorization.

142656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 758 (or 748 counting only the distinct ones).

The product of its digits is 1440, while the sum is 24.

The square root of 142656 is about 377.6982922916. The cubic root of 142656 is about 52.2512495599.

Adding to 142656 its reverse (656241), we get a palindrome (798897).

The spelling of 142656 in words is "one hundred forty-two thousand, six hundred fifty-six".

Divisors: 1 2 3 4 6 8 12 16 24 32 48 64 96 192 743 1486 2229 2972 4458 5944 8916 11888 17832 23776 35664 47552 71328 142656