Base | Representation |
---|---|
bin | 10110101011000… |
… | …110110110010101 |
3 | 222111210021022202 |
4 | 112223012312111 |
5 | 1234340231442 |
6 | 101425134245 |
7 | 12266223656 |
oct | 2653066625 |
9 | 874707282 |
10 | 380398997 |
11 | 1857a8440 |
12 | a748a385 |
13 | 60a6a984 |
14 | 3874152d |
15 | 235e0c32 |
hex | 16ac6d95 |
380398997 has 8 divisors (see below), whose sum is σ = 415189632. Its totient is φ = 345643200.
The previous prime is 380398969. The next prime is 380399069. The reversal of 380398997 is 799893083.
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 380398997 - 210 = 380397973 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (380398927) 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, 17597 + ... + 32717.
It is an arithmetic number, because the mean of its divisors is an integer number (51898704).
Almost surely, 2380398997 is an apocalyptic number.
It is an amenable number.
380398997 is a deficient number, since it is larger than the sum of its proper divisors (34790635).
380398997 is a wasteful number, since it uses less digits than its factorization.
380398997 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 17419.
The product of its (nonzero) digits is 2939328, while the sum is 56.
The square root of 380398997 is about 19503.8200617212. The cubic root of 380398997 is about 724.5690642380.
The spelling of 380398997 in words is "three hundred eighty million, three hundred ninety-eight thousand, nine hundred ninety-seven".
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