Base | Representation |
---|---|
bin | 1110101100000… |
… | …01000100111000 |
3 | 22120211211012200 |
4 | 13112001010320 |
5 | 223020241323 |
6 | 20120510200 |
7 | 3024166626 |
oct | 726010470 |
9 | 276754180 |
10 | 123212088 |
11 | 6360607a |
12 | 3531b360 |
13 | 1c6acc7c |
14 | 12514516 |
15 | ac3c443 |
hex | 7581138 |
123212088 has 24 divisors (see below), whose sum is σ = 333699600. Its totient is φ = 41070672.
The previous prime is 123212087. The next prime is 123212143. The reversal of 123212088 is 880212321.
It is a tau number, because it is divible by the number of its divisors (24).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (123212083) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 855568 + ... + 855711.
It is an arithmetic number, because the mean of its divisors is an integer number (13904150).
Almost surely, 2123212088 is an apocalyptic number.
123212088 is a gapful number since it is divisible by the number (18) formed by its first and last digit.
It is an amenable number.
123212088 is an abundant number, since it is smaller than the sum of its proper divisors (210487512).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
123212088 is a wasteful number, since it uses less digits than its factorization.
123212088 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1711291 (or 1711284 counting only the distinct ones).
The product of its (nonzero) digits is 1536, while the sum is 27.
The square root of 123212088 is about 11100.0940536556. The cubic root of 123212088 is about 497.6046603541.
The spelling of 123212088 in words is "one hundred twenty-three million, two hundred twelve thousand, eighty-eight".
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