Base | Representation |
---|---|
bin | 10110111110100… |
… | …001010010011001 |
3 | 222212100211011021 |
4 | 112332201102121 |
5 | 1242141104100 |
6 | 102130202441 |
7 | 12360410536 |
oct | 2676412231 |
9 | 885324137 |
10 | 385488025 |
11 | 18866394a |
12 | a9123421 |
13 | 61b30130 |
14 | 392a7d8d |
15 | 23c98a1a |
hex | 16fa1499 |
385488025 has 12 divisors (see below), whose sum is σ = 514775212. Its totient is φ = 284667840.
The previous prime is 385488023. The next prime is 385488041. The reversal of 385488025 is 520884583.
It can be written as a sum of positive squares in 6 ways, for example, as 700569 + 384787456 = 837^2 + 19616^2 .
It is not a de Polignac number, because 385488025 - 21 = 385488023 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (385488023) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 592734 + ... + 593383.
Almost surely, 2385488025 is an apocalyptic number.
It is an amenable number.
385488025 is a deficient number, since it is larger than the sum of its proper divisors (129287187).
385488025 is a wasteful number, since it uses less digits than its factorization.
385488025 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1186140 (or 1186135 counting only the distinct ones).
The product of its (nonzero) digits is 307200, while the sum is 43.
The square root of 385488025 is about 19633.8489604051. The cubic root of 385488025 is about 727.7858884338.
The spelling of 385488025 in words is "three hundred eighty-five million, four hundred eighty-eight thousand, twenty-five".
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