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142131314442 = 23135334381063
BaseRepresentation
bin1000010001011110101…
…1111011111100001010
3111120212101010212112010
42010113223323330022
54312041104030232
6145143315200350
713161101145015
oct2042753737412
9446771125463
10142131314442
1155306470237
12236675a60b6
13105312c51c0
146c4470a37c
153a6cdc20cc
hex2117afbf0a

142131314442 has 32 divisors (see below), whose sum is σ = 311905012608. Its totient is φ = 42907565376.

The previous prime is 142131314407. The next prime is 142131314447. The reversal of 142131314442 is 244413131241.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (142131314447) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17186398 + ... + 17194665.

It is an arithmetic number, because the mean of its divisors is an integer number (9747031644).

Almost surely, 2142131314442 is an apocalyptic number.

142131314442 is an abundant number, since it is smaller than the sum of its proper divisors (169773698166).

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

142131314442 is a wasteful number, since it uses less digits than its factorization.

142131314442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34381134.

The product of its digits is 9216, while the sum is 30.

Adding to 142131314442 its reverse (244413131241), we get a palindrome (386544445683).

The spelling of 142131314442 in words is "one hundred forty-two billion, one hundred thirty-one million, three hundred fourteen thousand, four hundred forty-two".

Divisors: 1 2 3 6 13 26 39 53 78 106 159 318 689 1378 2067 4134 34381063 68762126 103143189 206286378 446953819 893907638 1340861457 1822196339 2681722914 3644392678 5466589017 10933178034 23688552407 47377104814 71065657221 142131314442