Base | Representation |
---|---|
bin | 10110110000101… |
… | …111001101100001 |
3 | 222121120021002001 |
4 | 112300233031201 |
5 | 1240230000131 |
6 | 101520524001 |
7 | 12314612212 |
oct | 2660571541 |
9 | 877507061 |
10 | 381875041 |
11 | 186616409 |
12 | a7a80601 |
13 | 61166782 |
14 | 38a07409 |
15 | 237d3261 |
hex | 16c2f361 |
381875041 has 4 divisors (see below), whose sum is σ = 385656084. Its totient is φ = 378094000.
The previous prime is 381875023. The next prime is 381875071. The reversal of 381875041 is 140578183.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 140578183 = 1019 ⋅137957.
It can be written as a sum of positive squares in 2 ways, for example, as 210134016 + 171741025 = 14496^2 + 13105^2 .
It is a cyclic number.
It is not a de Polignac number, because 381875041 - 215 = 381842273 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (381875071) 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, 1890370 + ... + 1890571.
It is an arithmetic number, because the mean of its divisors is an integer number (96414021).
Almost surely, 2381875041 is an apocalyptic number.
It is an amenable number.
381875041 is a deficient number, since it is larger than the sum of its proper divisors (3781043).
381875041 is a wasteful number, since it uses less digits than its factorization.
381875041 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 3781042.
The product of its (nonzero) digits is 26880, while the sum is 37.
The square root of 381875041 is about 19541.6232949057. The cubic root of 381875041 is about 725.5050248987.
The spelling of 381875041 in words is "three hundred eighty-one million, eight hundred seventy-five thousand, forty-one".
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