Base | Representation |
---|---|
bin | 11011010010011… |
… | …01100000000111 |
3 | 120221201200101121 |
4 | 31221031200013 |
5 | 432100011030 |
6 | 34414134411 |
7 | 5446451251 |
oct | 1551154007 |
9 | 527650347 |
10 | 228907015 |
11 | 108237257 |
12 | 647b1407 |
13 | 3856894c |
14 | 22588cd1 |
15 | 1516947a |
hex | da4d807 |
228907015 has 8 divisors (see below), whose sum is σ = 274926960. Its totient is φ = 182966592.
The previous prime is 228906991. The next prime is 228907033. The reversal of 228907015 is 510709822.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-228907015 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 (13) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13350 + ... + 25219.
It is an arithmetic number, because the mean of its divisors is an integer number (34365870).
Almost surely, 2228907015 is an apocalyptic number.
228907015 is a deficient number, since it is larger than the sum of its proper divisors (46019945).
228907015 is a wasteful number, since it uses less digits than its factorization.
228907015 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 39761.
The product of its (nonzero) digits is 10080, while the sum is 34.
The square root of 228907015 is about 15129.6733276036. The cubic root of 228907015 is about 611.7204988750.
The spelling of 228907015 in words is "two hundred twenty-eight million, nine hundred seven thousand, fifteen".
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