Base | Representation |
---|---|
bin | 10110101010001… |
… | …111111001001001 |
3 | 222111100211112201 |
4 | 112222033321021 |
5 | 1234311031042 |
6 | 101420240201 |
7 | 12264265465 |
oct | 2652177111 |
9 | 874324481 |
10 | 380173897 |
11 | 185664304 |
12 | a73a0061 |
13 | 609bc38c |
14 | 386c34a5 |
15 | 235991b7 |
hex | 16a8fe49 |
380173897 has 4 divisors (see below), whose sum is σ = 380215296. Its totient is φ = 380132500.
The previous prime is 380173891. The next prime is 380173903. The reversal of 380173897 is 798371083.
It is a happy number.
It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.
It is an interprime number because it is at equal distance from previous prime (380173891) and next prime (380173903).
It is a cyclic number.
It is not a de Polignac number, because 380173897 - 27 = 380173769 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (380173891) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 73 + ... + 27574.
It is an arithmetic number, because the mean of its divisors is an integer number (95053824).
Almost surely, 2380173897 is an apocalyptic number.
It is an amenable number.
380173897 is a deficient number, since it is larger than the sum of its proper divisors (41399).
380173897 is a wasteful number, since it uses less digits than its factorization.
380173897 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 41398.
The product of its (nonzero) digits is 254016, while the sum is 46.
The square root of 380173897 is about 19498.0485433799. The cubic root of 380173897 is about 724.4261154924.
It can be divided in two parts, 38017 and 3897, that added together give a palindrome (41914).
The spelling of 380173897 in words is "three hundred eighty million, one hundred seventy-three thousand, eight hundred ninety-seven".
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