Base | Representation |
---|---|
bin | 11101010000011… |
… | …11011111000111 |
3 | 122002211010221222 |
4 | 32220033133013 |
5 | 1000312231330 |
6 | 40204230555 |
7 | 6040056662 |
oct | 1650173707 |
9 | 562733858 |
10 | 245430215 |
11 | 1165a2398 |
12 | 6a23b45b |
13 | 3bb026a4 |
14 | 2484a6d9 |
15 | 168300e5 |
hex | ea0f7c7 |
245430215 has 8 divisors (see below), whose sum is σ = 296635920. Its totient is φ = 194931072.
The previous prime is 245430209. The next prime is 245430221. The reversal of 245430215 is 512034542.
It is a happy number.
It is an interprime number because it is at equal distance from previous prime (245430209) and next prime (245430221).
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 245430215 - 218 = 245168071 is a prime.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 175874 + ... + 177263.
It is an arithmetic number, because the mean of its divisors is an integer number (37079490).
Almost surely, 2245430215 is an apocalyptic number.
245430215 is a deficient number, since it is larger than the sum of its proper divisors (51205705).
245430215 is a wasteful number, since it uses less digits than its factorization.
245430215 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 353281.
The product of its (nonzero) digits is 4800, while the sum is 26.
The square root of 245430215 is about 15666.2125288788. The cubic root of 245430215 is about 626.0985182145.
Adding to 245430215 its reverse (512034542), we get a palindrome (757464757).
The spelling of 245430215 in words is "two hundred forty-five million, four hundred thirty thousand, two hundred fifteen".
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