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143642928715 = 511131011989101
BaseRepresentation
bin1000010111000111001…
…0010010011001001011
3111201202201111211110221
42011301302102121023
54323140042204330
6145553314250511
713243414514506
oct2056162223113
9451681454427
10143642928715
1155a11763430
1223a09886a37
1310712522a10
146d4939413d
153b0a962b7a
hex2171c9264b

143642928715 has 32 divisors (see below), whose sum is σ = 204511511232. Its totient is φ = 95476800000.

The previous prime is 143642928713. The next prime is 143642928719. The reversal of 143642928715 is 517829246341.

It is not a de Polignac number, because 143642928715 - 21 = 143642928713 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (143642928713) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 922336 + ... + 1066765.

It is an arithmetic number, because the mean of its divisors is an integer number (6390984726).

Almost surely, 2143642928715 is an apocalyptic number.

143642928715 is a deficient number, since it is larger than the sum of its proper divisors (60868582517).

143642928715 is a wasteful number, since it uses less digits than its factorization.

143642928715 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1989231.

The product of its digits is 2903040, while the sum is 52.

The spelling of 143642928715 in words is "one hundred forty-three billion, six hundred forty-two million, nine hundred twenty-eight thousand, seven hundred fifteen".

Divisors: 1 5 11 13 55 65 101 143 505 715 1111 1313 5555 6565 14443 72215 1989101 9945505 21880111 25858313 109400555 129291565 200899201 284441443 1004496005 1422207215 2209891211 2611689613 11049456055 13058448065 28728585743 143642928715