Base | Representation |
---|---|
bin | 10110111001001111… |
… | …11100001010101111 |
3 | 1011201121102102021020 |
4 | 23130213330022233 |
5 | 200133044022200 |
6 | 5351355105223 |
7 | 613410052416 |
oct | 133447741257 |
9 | 34647372236 |
10 | 12291392175 |
11 | 5238196957 |
12 | 2470442213 |
13 | 120b63a62a |
14 | 8485d047d |
15 | 4be12dea0 |
hex | 2dc9fc2af |
12291392175 has 12 divisors (see below), whose sum is σ = 20321768520. Its totient is φ = 6555409120.
The previous prime is 12291392153. The next prime is 12291392177. The reversal of 12291392175 is 57129319221.
It is not a de Polignac number, because 12291392175 - 25 = 12291392143 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (12291392177) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 81942540 + ... + 81942689.
It is an arithmetic number, because the mean of its divisors is an integer number (1693480710).
Almost surely, 212291392175 is an apocalyptic number.
12291392175 is a gapful number since it is divisible by the number (15) formed by its first and last digit.
12291392175 is a deficient number, since it is larger than the sum of its proper divisors (8030376345).
12291392175 is a wasteful number, since it uses less digits than its factorization.
12291392175 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 163885242 (or 163885237 counting only the distinct ones).
The product of its digits is 68040, while the sum is 42.
The spelling of 12291392175 in words is "twelve billion, two hundred ninety-one million, three hundred ninety-two thousand, one hundred seventy-five".
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