Base | Representation |
---|---|
bin | 10111001100110… |
… | …111011001011101 |
3 | 1000010102212201000 |
4 | 113030313121131 |
5 | 1244121423410 |
6 | 102342540513 |
7 | 12434362404 |
oct | 2714673135 |
9 | 1003385630 |
10 | 389248605 |
11 | 18a7a2269 |
12 | aa437739 |
13 | 62848a25 |
14 | 399a663b |
15 | 2428cdc0 |
hex | 1733765d |
389248605 has 16 divisors (see below), whose sum is σ = 691997760. Its totient is φ = 207599184.
The previous prime is 389248603. The next prime is 389248631. The reversal of 389248605 is 506842983.
389248605 is a `hidden beast` number, since 38 + 9 + 2 + 4 + 8 + 605 = 666.
389248605 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.
It is not a de Polignac number, because 389248605 - 21 = 389248603 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (45).
It is a Curzon number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (389248603) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1441527 + ... + 1441796.
It is an arithmetic number, because the mean of its divisors is an integer number (43249860).
Almost surely, 2389248605 is an apocalyptic number.
It is an amenable number.
389248605 is a deficient number, since it is larger than the sum of its proper divisors (302749155).
389248605 is a wasteful number, since it uses less digits than its factorization.
389248605 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2883337 (or 2883331 counting only the distinct ones).
The product of its (nonzero) digits is 414720, while the sum is 45.
The square root of 389248605 is about 19729.3843036218. The cubic root of 389248605 is about 730.1448420920.
The spelling of 389248605 in words is "three hundred eighty-nine million, two hundred forty-eight thousand, six hundred five".
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