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142146148 = 22225115787
BaseRepresentation
bin10000111100011…
…11101001100100
3100220110202212011
420132033221210
5242342134043
622034404004
73344136154
oct1036175144
9326422764
10142146148
1173268561
123b730604
13235ac161
1414c42764
15c72c59d
hex878fa64

142146148 has 12 divisors (see below), whose sum is σ = 248882032. Its totient is φ = 71037000.

The previous prime is 142146113. The next prime is 142146157. The reversal of 142146148 is 841641241.

142146148 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

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, 1111 + ... + 16897.

Almost surely, 2142146148 is an apocalyptic number.

It is an amenable number.

142146148 is a deficient number, since it is larger than the sum of its proper divisors (106735884).

142146148 is a wasteful number, since it uses less digits than its factorization.

142146148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18042 (or 18040 counting only the distinct ones).

The product of its digits is 6144, while the sum is 31.

The square root of 142146148 is about 11922.5059446410. The cubic root of 142146148 is about 521.8892666472.

Adding to 142146148 its reverse (841641241), we get a palindrome (983787389).

The spelling of 142146148 in words is "one hundred forty-two million, one hundred forty-six thousand, one hundred forty-eight".

Divisors: 1 2 4 2251 4502 9004 15787 31574 63148 35536537 71073074 142146148