Base | Representation |
---|---|
bin | 1000010111000… |
… | …00011111111101 |
3 | 11212221202012011 |
4 | 10023200133331 |
5 | 120423004230 |
6 | 10543011221 |
7 | 1511025466 |
oct | 413403775 |
9 | 155852164 |
10 | 70125565 |
11 | 36647414 |
12 | 1b599b11 |
13 | 116b3a23 |
14 | 9455d6d |
15 | 6252e2a |
hex | 42e07fd |
70125565 has 16 divisors (see below), whose sum is σ = 87137280. Its totient is φ = 54120960.
The previous prime is 70125563. The next prime is 70125569. The reversal of 70125565 is 56552107.
It is not a de Polignac number, because 70125565 - 21 = 70125563 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (31).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (70125563) 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, 75021 + ... + 75949.
It is an arithmetic number, because the mean of its divisors is an integer number (5446080).
Almost surely, 270125565 is an apocalyptic number.
It is an amenable number.
70125565 is a deficient number, since it is larger than the sum of its proper divisors (17011715).
70125565 is a wasteful number, since it uses less digits than its factorization.
70125565 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1452.
The product of its (nonzero) digits is 10500, while the sum is 31.
The square root of 70125565 is about 8374.1008472552. The cubic root of 70125565 is about 412.3748062071.
The spelling of 70125565 in words is "seventy million, one hundred twenty-five thousand, five hundred sixty-five".
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