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144285857143 = 73831011371721
BaseRepresentation
bin1000011001100000011…
…0110111010101110111
3111210102112021222110221
42012120012313111313
54330444134412033
6150141202355211
713265352356431
oct2063006672567
9453375258427
10144285857143
115621167203a
1223b6905bb07
13107b579c03c
146daa913651
153b4711012d
hex21981b7577

144285857143 has 32 divisors (see below), whose sum is σ = 150668828352. Its totient is φ = 138106368000.

The previous prime is 144285857129. The next prime is 144285857153. The reversal of 144285857143 is 341758582441.

It is a cyclic number.

It is not a de Polignac number, because 144285857143 - 237 = 6846903671 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144285857153) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 83837523 + ... + 83839243.

It is an arithmetic number, because the mean of its divisors is an integer number (4708400886).

Almost surely, 2144285857143 is an apocalyptic number.

144285857143 is a deficient number, since it is larger than the sum of its proper divisors (6382971209).

144285857143 is a wasteful number, since it uses less digits than its factorization.

144285857143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2115.

The product of its digits is 4300800, while the sum is 52.

The spelling of 144285857143 in words is "one hundred forty-four billion, two hundred eighty-five million, eight hundred fifty-seven thousand, one hundred forty-three".

Divisors: 1 73 83 101 137 1721 6059 7373 8383 10001 11371 13837 125633 142843 173821 235777 611959 830083 1010101 1148471 10427539 12688933 14427143 17211721 19569491 23813477 83838383 1053181439 1428572843 1738383821 1976518591 144285857143