Base | Representation |
---|---|
bin | 101101110010011… |
… | …101000011011001 |
3 | 1222112111122112222 |
4 | 231302131003121 |
5 | 3033124412141 |
6 | 204121113425 |
7 | 25015412555 |
oct | 5562350331 |
9 | 1875448488 |
10 | 768200921 |
11 | 3646a17a4 |
12 | 195328875 |
13 | c31cb077 |
14 | 7404c865 |
15 | 4769514b |
hex | 2dc9d0d9 |
768200921 has 8 divisors (see below), whose sum is σ = 783229824. Its totient is φ = 753191920.
The previous prime is 768200893. The next prime is 768200933. The reversal of 768200921 is 129002867.
It is a happy number.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 768200921 - 210 = 768199897 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (768200971) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 90656 + ... + 98766.
It is an arithmetic number, because the mean of its divisors is an integer number (97903728).
Almost surely, 2768200921 is an apocalyptic number.
It is an amenable number.
768200921 is a deficient number, since it is larger than the sum of its proper divisors (15028903).
768200921 is a wasteful number, since it uses less digits than its factorization.
768200921 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 9951.
The product of its (nonzero) digits is 12096, while the sum is 35.
The square root of 768200921 is about 27716.4377400849. The cubic root of 768200921 is about 915.8512471941.
The spelling of 768200921 in words is "seven hundred sixty-eight million, two hundred thousand, nine hundred twenty-one".
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