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142144144042 = 2647363130253
BaseRepresentation
bin1000010001100001110…
…0111000001010101010
3111120220021021200102111
42010120130320022222
54312102400102132
6145144454152534
713161315201055
oct2043034701252
9446807250374
10142144144042
115531273330a
122366b95274a
1310533b67994
146c462c9a9c
153a6e0a8647
hex21187382aa

142144144042 has 16 divisors (see below), whose sum is σ = 213611634432. Its totient is φ = 70940334960.

The previous prime is 142144144033. The next prime is 142144144049. The reversal of 142144144042 is 240441441241.

It is a junction number, because it is equal to n+sod(n) for n = 142144143995 and 142144144013.

It is not an unprimeable number, because it can be changed into a prime (142144144049) 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, 4683388 + ... + 4713640.

It is an arithmetic number, because the mean of its divisors is an integer number (13350727152).

Almost surely, 2142144144042 is an apocalyptic number.

142144144042 is a deficient number, since it is larger than the sum of its proper divisors (71467490390).

142144144042 is a wasteful number, since it uses less digits than its factorization.

142144144042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34533.

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

Adding to 142144144042 its reverse (240441441241), we get a palindrome (382585585283).

The spelling of 142144144042 in words is "one hundred forty-two billion, one hundred forty-four million, one hundred forty-four thousand, forty-two".

Divisors: 1 2 647 1294 3631 7262 30253 60506 2349257 4698514 19573691 39147382 109848643 219697286 71072072021 142144144042