Base | Representation |
---|---|
bin | 11010111000010… |
… | …10110011001111 |
3 | 120201021222111100 |
4 | 31130022303033 |
5 | 430211104304 |
6 | 34212554143 |
7 | 5405421435 |
oct | 1534126317 |
9 | 521258440 |
10 | 225488079 |
11 | 106311593 |
12 | 63622953 |
13 | 3793c6cb |
14 | 21d38d55 |
15 | 14be1439 |
hex | d70accf |
225488079 has 36 divisors (see below), whose sum is σ = 348567232. Its totient is φ = 140459760.
The previous prime is 225488071. The next prime is 225488099. The reversal of 225488079 is 970884522.
It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.
225488079 is a `hidden beast` number, since 22 + 548 + 80 + 7 + 9 = 666.
It is not a de Polignac number, because 225488079 - 23 = 225488071 is a prime.
It is a super-2 number, since 2×2254880792 = 101689747542220482, which contains 22 as substring.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (225488071) by changing a digit.
It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 7273794 + ... + 7273824.
Almost surely, 2225488079 is an apocalyptic number.
225488079 is a gapful number since it is divisible by the number (29) formed by its first and last digit.
225488079 is a deficient number, since it is larger than the sum of its proper divisors (123079153).
225488079 is an frugal number, since it uses more digits than its factorization.
225488079 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 157 (or 63 counting only the distinct ones).
The product of its (nonzero) digits is 322560, while the sum is 45.
The square root of 225488079 is about 15016.2604865526. The cubic root of 225488079 is about 608.6596737972.
The spelling of 225488079 in words is "two hundred twenty-five million, four hundred eighty-eight thousand, seventy-nine".
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