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143506131142 = 21117383706233
BaseRepresentation
bin1000010110100110100…
…0011100100011000110
3111201102012002210111011
42011221220130203012
54322400032144032
6145531550232434
713240133662663
oct2055150344306
9451365083434
10143506131142
1155951519390
122398bab571a
13106c00971ca
146d35144a6a
153aed940247
hex2169a1c8c6

143506131142 has 16 divisors (see below), whose sum is σ = 248641639632. Its totient is φ = 61392997120.

The previous prime is 143506131137. The next prime is 143506131143. The reversal of 143506131142 is 241131605341.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143506131143) 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, 191852743 + ... + 191853490.

It is an arithmetic number, because the mean of its divisors is an integer number (15540102477).

Almost surely, 2143506131142 is an apocalyptic number.

143506131142 is a deficient number, since it is larger than the sum of its proper divisors (105135508490).

143506131142 is a wasteful number, since it uses less digits than its factorization.

143506131142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 383706263.

The product of its (nonzero) digits is 8640, while the sum is 31.

Adding to 143506131142 its reverse (241131605341), we get a palindrome (384637736483).

The spelling of 143506131142 in words is "one hundred forty-three billion, five hundred six million, one hundred thirty-one thousand, one hundred forty-two".

Divisors: 1 2 11 17 22 34 187 374 383706233 767412466 4220768563 6523005961 8441537126 13046011922 71753065571 143506131142