Base | Representation |
---|---|
bin | 1000011100111000111… |
… | …0010000110000011000 |
3 | 111212202210200112011122 |
4 | 2013032032100300120 |
5 | 4334324101002122 |
6 | 150411234144412 |
7 | 13330015434656 |
oct | 2071616206030 |
9 | 455683615148 |
10 | 145193765912 |
11 | 56638106368 |
12 | 24181122108 |
13 | 108cb904470 |
14 | 705532bdd6 |
15 | 3b9bba0142 |
hex | 21ce390c18 |
145193765912 has 16 divisors (see below), whose sum is σ = 293179719840. Its totient is φ = 67012507296.
The previous prime is 145193765891. The next prime is 145193765917. The reversal of 145193765912 is 219567391541.
It is a happy number.
It is a Smith number, since the sum of its digits (53) coincides with the sum of the digits of its prime factors.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (145193765917) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 698046848 + ... + 698047055.
It is an arithmetic number, because the mean of its divisors is an integer number (18323732490).
Almost surely, 2145193765912 is an apocalyptic number.
It is an amenable number.
145193765912 is an abundant number, since it is smaller than the sum of its proper divisors (147985953928).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
145193765912 is a wasteful number, since it uses less digits than its factorization.
145193765912 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1396093922 (or 1396093918 counting only the distinct ones).
The product of its digits is 2041200, while the sum is 53.
The spelling of 145193765912 in words is "one hundred forty-five billion, one hundred ninety-three million, seven hundred sixty-five thousand, nine hundred twelve".
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