Base | Representation |
---|---|
bin | 1000010110010… |
… | …00100101111001 |
3 | 11212202202212100 |
4 | 10023020211321 |
5 | 120411341031 |
6 | 10540534013 |
7 | 1510140135 |
oct | 413104571 |
9 | 155682770 |
10 | 70027641 |
11 | 3658a892 |
12 | 1b551309 |
13 | 1167b298 |
14 | 942c3c5 |
15 | 6233de6 |
hex | 42c8979 |
70027641 has 12 divisors (see below), whose sum is σ = 107101332. Its totient is φ = 43938816.
The previous prime is 70027619. The next prime is 70027651. The reversal of 70027641 is 14672007.
It can be written as a sum of positive squares in 2 ways, for example, as 46785600 + 23242041 = 6840^2 + 4821^2 .
It is not a de Polignac number, because 70027641 - 26 = 70027577 is a prime.
It is not an unprimeable number, because it can be changed into a prime (70027651) 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, 228696 + ... + 229001.
It is an arithmetic number, because the mean of its divisors is an integer number (8925111).
Almost surely, 270027641 is an apocalyptic number.
It is an amenable number.
70027641 is a deficient number, since it is larger than the sum of its proper divisors (37073691).
70027641 is a wasteful number, since it uses less digits than its factorization.
70027641 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 457720 (or 457717 counting only the distinct ones).
The product of its (nonzero) digits is 2352, while the sum is 27.
The square root of 70027641 is about 8368.2519680038. The cubic root of 70027641 is about 412.1827687695.
Adding to 70027641 its reverse (14672007), we get a palindrome (84699648).
The spelling of 70027641 in words is "seventy million, twenty-seven thousand, six hundred forty-one".
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