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145742873143 = 741253233693
BaseRepresentation
bin1000011110111011110…
…0111100001000110111
3111221012001221001200111
42013232330330020313
54341440133420033
6150541531323451
713346433660460
oct2075674741067
9457161831614
10145742873143
115689a06379a
12242b4bb0587
13109885c149a
1470a8227d67
153bceeb87cd
hex21eef3c237

145742873143 has 24 divisors (see below), whose sum is σ = 173946857184. Its totient is φ = 119575522560.

The previous prime is 145742873131. The next prime is 145742873161. The reversal of 145742873143 is 341378247541.

It is not a de Polignac number, because 145742873143 - 217 = 145742742071 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 (145742873113) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 506805 + ... + 740497.

It is an arithmetic number, because the mean of its divisors is an integer number (7247785716).

Almost surely, 2145742873143 is an apocalyptic number.

145742873143 is a deficient number, since it is larger than the sum of its proper divisors (28203984041).

145742873143 is an equidigital number, since it uses as much as digits as its factorization.

145742873143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 233835 (or 233794 counting only the distinct ones).

The product of its digits is 2257920, while the sum is 49.

The spelling of 145742873143 in words is "one hundred forty-five billion, seven hundred forty-two million, eight hundred seventy-three thousand, one hundred forty-three".

Divisors: 1 7 41 53 287 371 1681 2173 11767 15211 89093 233693 623651 1635851 9581413 12385729 67069891 86700103 392837933 507814889 2749865531 3554704223 20820410449 145742873143