Search a number
-
+
142471568 = 2423387151
BaseRepresentation
bin10000111110111…
…11000110010000
3100221002022020202
420133133012100
5242433042233
622045354332
73346663001
oct1037370620
9327068222
10142471568
117346aaa8
123b8689a8
1323694305
1414cc91a8
15c793be8
hex87df190

142471568 has 20 divisors (see below), whose sum is σ = 288041088. Its totient is φ = 68138400.

The previous prime is 142471561. The next prime is 142471573. The reversal of 142471568 is 865174241.

142471568 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142471561) 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, 193208 + ... + 193943.

Almost surely, 2142471568 is an apocalyptic number.

It is an amenable number.

142471568 is an abundant number, since it is smaller than the sum of its proper divisors (145569520).

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

142471568 is a wasteful number, since it uses less digits than its factorization.

142471568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 387182 (or 387176 counting only the distinct ones).

The product of its digits is 53760, while the sum is 38.

The square root of 142471568 is about 11936.1454414731. The cubic root of 142471568 is about 522.2872227191.

The spelling of 142471568 in words is "one hundred forty-two million, four hundred seventy-one thousand, five hundred sixty-eight".

Divisors: 1 2 4 8 16 23 46 92 184 368 387151 774302 1548604 3097208 6194416 8904473 17808946 35617892 71235784 142471568