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142532455 = 51319711131
BaseRepresentation
bin10000111111011…
…01111101100111
3100221012101202211
420133231331213
5242442014310
622050544251
73350335342
oct1037557547
9327171684
10142532455
117350181a
123b898087
13236b5c40
1414d03459
15c7a6c8a
hex87edf67

142532455 has 16 divisors (see below), whose sum is σ = 185147424. Its totient is φ = 104711040.

The previous prime is 142532371. The next prime is 142532483. The reversal of 142532455 is 554235241.

It is not a de Polignac number, because 142532455 - 221 = 140435303 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7240 + ... + 18370.

It is an arithmetic number, because the mean of its divisors is an integer number (11571714).

Almost surely, 2142532455 is an apocalyptic number.

142532455 is a deficient number, since it is larger than the sum of its proper divisors (42614969).

142532455 is a wasteful number, since it uses less digits than its factorization.

142532455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11346.

The product of its digits is 24000, while the sum is 31.

The square root of 142532455 is about 11938.6956992797. The cubic root of 142532455 is about 522.3616141071.

Adding to 142532455 its reverse (554235241), we get a palindrome (696767696).

The spelling of 142532455 in words is "one hundred forty-two million, five hundred thirty-two thousand, four hundred fifty-five".

Divisors: 1 5 13 65 197 985 2561 11131 12805 55655 144703 723515 2192807 10964035 28506491 142532455