Base | Representation |
---|---|
bin | 1000010110010… |
… | …00000000110111 |
3 | 11212202122121120 |
4 | 10023020000313 |
5 | 120411302041 |
6 | 10540515023 |
7 | 1510130211 |
oct | 413100067 |
9 | 155678546 |
10 | 70025271 |
11 | 36589028 |
12 | 1b54ba73 |
13 | 1167a194 |
14 | 942b5b1 |
15 | 6233366 |
hex | 42c8037 |
70025271 has 32 divisors (see below), whose sum is σ = 100638720. Its totient is φ = 43210464.
The previous prime is 70025269. The next prime is 70025303. The reversal of 70025271 is 17252007.
It is not a de Polignac number, because 70025271 - 21 = 70025269 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (70025471) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 419230 + ... + 419396.
It is an arithmetic number, because the mean of its divisors is an integer number (3144960).
Almost surely, 270025271 is an apocalyptic number.
70025271 is a deficient number, since it is larger than the sum of its proper divisors (30613449).
70025271 is a wasteful number, since it uses less digits than its factorization.
70025271 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 355.
The product of its (nonzero) digits is 980, while the sum is 24.
The square root of 70025271 is about 8368.1103601709. The cubic root of 70025271 is about 412.1781187762.
Adding to 70025271 its reverse (17252007), we get a palindrome (87277278).
The spelling of 70025271 in words is "seventy million, twenty-five thousand, two hundred seventy-one".
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