Base | Representation |
---|---|
bin | 101101110010001… |
… | …010001011100111 |
3 | 1222112100201112002 |
4 | 231302022023213 |
5 | 3033114423443 |
6 | 204115315515 |
7 | 25014641321 |
oct | 5562121347 |
9 | 1875321462 |
10 | 768123623 |
11 | 364649713 |
12 | 1952abb9b |
13 | c31a1b27 |
14 | 7402c611 |
15 | 4767c2b8 |
hex | 2dc8a2e7 |
768123623 has 2 divisors, whose sum is σ = 768123624. Its totient is φ = 768123622.
The previous prime is 768123619. The next prime is 768123683. The reversal of 768123623 is 326321867.
It is a weak prime.
It is an emirp because it is prime and its reverse (326321867) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 768123623 - 22 = 768123619 is a prime.
It is a super-3 number, since 3×7681236233 (a number of 28 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (768123613) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 384061811 + 384061812.
It is an arithmetic number, because the mean of its divisors is an integer number (384061812).
Almost surely, 2768123623 is an apocalyptic number.
768123623 is a deficient number, since it is larger than the sum of its proper divisors (1).
768123623 is an equidigital number, since it uses as much as digits as its factorization.
768123623 is an evil number, because the sum of its binary digits is even.
The product of its digits is 72576, while the sum is 38.
The square root of 768123623 is about 27715.0432617378. The cubic root of 768123623 is about 915.8205278678.
The spelling of 768123623 in words is "seven hundred sixty-eight million, one hundred twenty-three thousand, six hundred twenty-three".
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