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142113242 = 2478916987
BaseRepresentation
bin10000111100001…
…11100111011010
3100220102002201102
420132013213122
5242340110432
622033551402
73343641215
oct1036074732
9326362642
10142113242
1173245867
123b715562
132359a19b
1414c3477c
15c722962
hex87879da

142113242 has 16 divisors (see below), whose sum is σ = 220164480. Its totient is φ = 68759328.

The previous prime is 142113203. The next prime is 142113247. The reversal of 142113242 is 242311241.

It is not an unprimeable number, because it can be changed into a prime (142113247) 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, 128 + ... + 16859.

It is an arithmetic number, because the mean of its divisors is an integer number (13760280).

Almost surely, 2142113242 is an apocalyptic number.

142113242 is a deficient number, since it is larger than the sum of its proper divisors (78051238).

142113242 is a wasteful number, since it uses less digits than its factorization.

142113242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17125.

The product of its digits is 384, while the sum is 20.

The square root of 142113242 is about 11921.1258696484. The cubic root of 142113242 is about 521.8489921039.

Adding to 142113242 its reverse (242311241), we get a palindrome (384424483).

The spelling of 142113242 in words is "one hundred forty-two million, one hundred thirteen thousand, two hundred forty-two".

Divisors: 1 2 47 89 94 178 4183 8366 16987 33974 798389 1511843 1596778 3023686 71056621 142113242