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142484242 = 2177953047
BaseRepresentation
bin10000111111000…
…10001100010010
3100221002221122011
420133202030102
5242433443432
622045533134
73350044645
oct1037421422
9327087564
10142484242
117347957a
123b8741aa
132369a004
1414ccda5c
15c797847
hex87e2312

142484242 has 16 divisors (see below), whose sum is σ = 229167360. Its totient is φ = 66201408.

The previous prime is 142484239. The next prime is 142484257. The reversal of 142484242 is 242484241.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23838 + ... + 29209.

It is an arithmetic number, because the mean of its divisors is an integer number (14322960).

Almost surely, 2142484242 is an apocalyptic number.

142484242 is a deficient number, since it is larger than the sum of its proper divisors (86683118).

142484242 is a wasteful number, since it uses less digits than its factorization.

142484242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53145.

The product of its digits is 16384, while the sum is 31.

The square root of 142484242 is about 11936.6763380767. The cubic root of 142484242 is about 522.3027094862.

Subtracting 142484242 from its reverse (242484241), we obtain a palindrome (99999999).

The spelling of 142484242 in words is "one hundred forty-two million, four hundred eighty-four thousand, two hundred forty-two".

Divisors: 1 2 17 34 79 158 1343 2686 53047 106094 901799 1803598 4190713 8381426 71242121 142484242