Base | Representation |
---|---|
bin | 1000010110010… |
… | …00000010111111 |
3 | 11212202122210121 |
4 | 10023020002333 |
5 | 120411303112 |
6 | 10540515411 |
7 | 1510130464 |
oct | 413100277 |
9 | 155678717 |
10 | 70025407 |
11 | 36589141 |
12 | 1b54bb67 |
13 | 1167a26a |
14 | 942b66b |
15 | 6233407 |
hex | 42c80bf |
70025407 has 2 divisors, whose sum is σ = 70025408. Its totient is φ = 70025406.
The previous prime is 70025399. The next prime is 70025411. The reversal of 70025407 is 70452007.
It is a strong prime.
It is an emirp because it is prime and its reverse (70452007) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 70025407 - 23 = 70025399 is a prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (70025437) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35012703 + 35012704.
It is an arithmetic number, because the mean of its divisors is an integer number (35012704).
Almost surely, 270025407 is an apocalyptic number.
70025407 is a deficient number, since it is larger than the sum of its proper divisors (1).
70025407 is an equidigital number, since it uses as much as digits as its factorization.
70025407 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 1960, while the sum is 25.
The square root of 70025407 is about 8368.1184862548. The cubic root of 70025407 is about 412.1783856141.
The spelling of 70025407 in words is "seventy million, twenty-five thousand, four hundred seven".
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