Search a number
-
+
60142 = 230071
BaseRepresentation
bin1110101011101110
310001111111
432223232
53411032
61142234
7340225
oct165356
9101444
1060142
1141205
122a97a
13214b4
1417cbc
1512c47
hexeaee

60142 has 4 divisors (see below), whose sum is σ = 90216. Its totient is φ = 30070.

The previous prime is 60139. The next prime is 60149. The reversal of 60142 is 24106.

It is a semiprime because it is the product of two primes.

It is a Smith number, since the sum of its digits (13) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an Ulam 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 pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15034 + ... + 15037.

It is an arithmetic number, because the mean of its divisors is an integer number (22554).

260142 is an apocalyptic number.

60142 is a deficient number, since it is larger than the sum of its proper divisors (30074).

60142 is a wasteful number, since it uses less digits than its factorization.

60142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30073.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 60142 is about 245.2386592689. The cubic root of 60142 is about 39.1795360355.

Adding to 60142 its reverse (24106), we get a palindrome (84248).

It can be divided in two parts, 60 and 142, that added together give a palindrome (202).

The spelling of 60142 in words is "sixty thousand, one hundred forty-two".

Divisors: 1 2 30071 60142