Base | Representation |
---|---|
bin | 1000011010011… |
… | …00100011010001 |
3 | 11220210020022000 |
4 | 10031030203101 |
5 | 121031140040 |
6 | 11000304213 |
7 | 1514551014 |
oct | 415144321 |
9 | 156706260 |
10 | 70568145 |
11 | 3691998a |
12 | 1b772069 |
13 | 1180a2cb |
14 | 952d37b |
15 | 62de130 |
hex | 434c8d1 |
70568145 has 32 divisors (see below), whose sum is σ = 125836800. Its totient is φ = 37521792.
The previous prime is 70568143. The next prime is 70568153. The reversal of 70568145 is 54186507.
It is not a de Polignac number, because 70568145 - 21 = 70568143 is a prime.
It is not an unprimeable number, because it can be changed into a prime (70568143) by changing a digit.
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 31 ways as a sum of consecutive naturals, for example, 61941 + ... + 63069.
It is an arithmetic number, because the mean of its divisors is an integer number (3932400).
Almost surely, 270568145 is an apocalyptic number.
It is an amenable number.
70568145 is a deficient number, since it is larger than the sum of its proper divisors (55268655).
70568145 is a wasteful number, since it uses less digits than its factorization.
70568145 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1606 (or 1600 counting only the distinct ones).
The product of its (nonzero) digits is 33600, while the sum is 36.
The square root of 70568145 is about 8400.4848074382. The cubic root of 70568145 is about 413.2405210589.
The spelling of 70568145 in words is "seventy million, five hundred sixty-eight thousand, one hundred forty-five".
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