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142464242 = 2199673877
BaseRepresentation
bin10000111110111…
…01010011110010
3100221001221012102
420133131103302
5242432323432
622045300402
73346632434
oct1037352362
9327057172
10142464242
1173465548
123b864702
1323690b8b
1414cc6654
15c791962
hex87dd4f2

142464242 has 16 divisors (see below), whose sum is σ = 225234240. Its totient is φ = 67395888.

The previous prime is 142464241. The next prime is 142464247. The reversal of 142464242 is 242464241.

142464242 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (142464241) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34808 + ... + 38684.

It is an arithmetic number, because the mean of its divisors is an integer number (14077140).

Almost surely, 2142464242 is an apocalyptic number.

142464242 is a deficient number, since it is larger than the sum of its proper divisors (82769998).

142464242 is a wasteful number, since it uses less digits than its factorization.

142464242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4865.

The product of its digits is 12288, while the sum is 29.

The square root of 142464242 is about 11935.8385545382. The cubic root of 142464242 is about 522.2782704258.

Subtracting 142464242 from its reverse (242464241), we obtain a palindrome (99999999).

The spelling of 142464242 in words is "one hundred forty-two million, four hundred sixty-four thousand, two hundred forty-two".

Divisors: 1 2 19 38 967 1934 3877 7754 18373 36746 73663 147326 3749059 7498118 71232121 142464242