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145205066312 = 2347528173127
BaseRepresentation
bin1000011100111011100…
…1010111101001001000
3111212210120221122101222
42013032321113221020
54334334444110222
6150412320301212
713330213461515
oct2071671275110
9455716848358
10145205066312
1156643524539
1224184a71808
131090105cba7
147056a3030c
153b9cb83542
hex21cee57a48

145205066312 has 32 divisors (see below), whose sum is σ = 278108709120. Its totient is φ = 71043371520.

The previous prime is 145205066263. The next prime is 145205066317. The reversal of 145205066312 is 213660502541.

145205066312 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×1452050663122 (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (145205066317) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1949093 + ... + 2022219.

It is an arithmetic number, because the mean of its divisors is an integer number (8690897160).

Almost surely, 2145205066312 is an apocalyptic number.

It is an amenable number.

145205066312 is a deficient number, since it is larger than the sum of its proper divisors (132903642808).

145205066312 is a wasteful number, since it uses less digits than its factorization.

145205066312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78461 (or 78457 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 35.

Adding to 145205066312 its reverse (213660502541), we get a palindrome (358865568853).

The spelling of 145205066312 in words is "one hundred forty-five billion, two hundred five million, sixty-six thousand, three hundred twelve".

Divisors: 1 2 4 8 47 94 188 376 5281 10562 21124 42248 73127 146254 248207 292508 496414 585016 992828 1985656 3436969 6873938 13747876 27495752 386183687 772367374 1544734748 3089469496 18150633289 36301266578 72602533156 145205066312