Base | Representation |
---|---|
bin | 10111001001000… |
… | …111100001000000 |
3 | 1000001120221220000 |
4 | 113021013201000 |
5 | 1243344003143 |
6 | 102305520000 |
7 | 12423130662 |
oct | 2711074100 |
9 | 1001527800 |
10 | 388266048 |
11 | 18a191035 |
12 | aa043000 |
13 | 62593731 |
14 | 397cc532 |
15 | 24146bd3 |
hex | 17247840 |
388266048 has 70 divisors (see below), whose sum is σ = 1150957566. Its totient is φ = 129420288.
The previous prime is 388265959. The next prime is 388266061. The reversal of 388266048 is 840662883.
It is a happy number.
388266048 is a `hidden beast` number, since 38 + 8 + 2 + 6 + 604 + 8 = 666.
It can be written as a sum of positive squares in only one way, i.e., 199148544 + 189117504 = 14112^2 + 13752^2 .
It is a junction number, because it is equal to n+sod(n) for n = 388265994 and 388266012.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 32265 + ... + 42632.
Almost surely, 2388266048 is an apocalyptic number.
It is an amenable number.
388266048 is an abundant number, since it is smaller than the sum of its proper divisors (762691518).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
388266048 is an equidigital number, since it uses as much as digits as its factorization.
388266048 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 74921 (or 74902 counting only the distinct ones).
The product of its (nonzero) digits is 442368, while the sum is 45.
The square root of 388266048 is about 19704.4677167388. The cubic root of 388266048 is about 729.5299707717.
The spelling of 388266048 in words is "three hundred eighty-eight million, two hundred sixty-six thousand, forty-eight".
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