Base | Representation |
---|---|
bin | 10110100011000… |
… | …101101110001111 |
3 | 222100211111020120 |
4 | 112203011232033 |
5 | 1233321002411 |
6 | 101312120023 |
7 | 12242321244 |
oct | 2643055617 |
9 | 870744216 |
10 | 378297231 |
11 | 1845a2344 |
12 | a6836013 |
13 | 604b3120 |
14 | 383555cb |
15 | 23328106 |
hex | 168c5b8f |
378297231 has 8 divisors (see below), whose sum is σ = 543196080. Its totient is φ = 232798272.
The previous prime is 378297229. The next prime is 378297233. The reversal of 378297231 is 132792873.
It is an interprime number because it is at equal distance from previous prime (378297229) and next prime (378297233).
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 378297231 - 21 = 378297229 is a prime.
It is a super-2 number, since 2×3782972312 = 286217589964534722, which contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (378297233) 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, 4849926 + ... + 4850003.
It is an arithmetic number, because the mean of its divisors is an integer number (67899510).
Almost surely, 2378297231 is an apocalyptic number.
378297231 is a deficient number, since it is larger than the sum of its proper divisors (164898849).
378297231 is a wasteful number, since it uses less digits than its factorization.
378297231 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 9699945.
The product of its digits is 127008, while the sum is 42.
The square root of 378297231 is about 19449.8645496569. The cubic root of 378297231 is about 723.2321452078.
The spelling of 378297231 in words is "three hundred seventy-eight million, two hundred ninety-seven thousand, two hundred thirty-one".
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