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142017144 = 2335917381
BaseRepresentation
bin10000111011100…
…00001001111000
3100220020012220020
420131300021320
5242324022034
622031530440
73343061103
oct1035601170
9326205806
10142017144
117318a645
123b689a20
1323565519
1414c0b73a
15c704249
hex8770278

142017144 has 16 divisors (see below), whose sum is σ = 355042920. Its totient is φ = 47339040.

The previous prime is 142017101. The next prime is 142017151. The reversal of 142017144 is 441710241.

It is a super-3 number, since 3×1420171443 (a number of 25 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24), and also a Moran number because the ratio is a prime number: 5917381 = 142017144 / (1 + 4 + 2 + 0 + 1 + 7 + 1 + 4 + 4).

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, 2958667 + ... + 2958714.

Almost surely, 2142017144 is an apocalyptic number.

It is an amenable number.

142017144 is an abundant number, since it is smaller than the sum of its proper divisors (213025776).

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

142017144 is a wasteful number, since it uses less digits than its factorization.

142017144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5917390 (or 5917386 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 24.

The square root of 142017144 is about 11917.0946123625. The cubic root of 142017144 is about 521.7313395624.

Adding to 142017144 its reverse (441710241), we get a palindrome (583727385).

The spelling of 142017144 in words is "one hundred forty-two million, seventeen thousand, one hundred forty-four".

Divisors: 1 2 3 4 6 8 12 24 5917381 11834762 17752143 23669524 35504286 47339048 71008572 142017144