Base | Representation |
---|---|
bin | 11101010100101… |
… | …00010001011001 |
3 | 122010211210001001 |
4 | 32222110101121 |
5 | 1000432132410 |
6 | 40224025001 |
7 | 6044513446 |
oct | 1652242131 |
9 | 563753031 |
10 | 245974105 |
11 | 116933a93 |
12 | 6a462161 |
13 | 3bc63110 |
14 | 2494c9cd |
15 | 168db33a |
hex | ea94459 |
245974105 has 16 divisors (see below), whose sum is σ = 336574224. Its totient is φ = 170956800.
The previous prime is 245974081. The next prime is 245974111. The reversal of 245974105 is 501479542.
It can be written as a sum of positive squares in 8 ways, for example, as 32901696 + 213072409 = 5736^2 + 14597^2 .
It is not a de Polignac number, because 245974105 - 27 = 245973977 is a prime.
It is a Duffinian 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 15 ways as a sum of consecutive naturals, for example, 110196 + ... + 112405.
It is an arithmetic number, because the mean of its divisors is an integer number (21035889).
Almost surely, 2245974105 is an apocalyptic number.
It is an amenable number.
245974105 is a deficient number, since it is larger than the sum of its proper divisors (90600119).
245974105 is a wasteful number, since it uses less digits than its factorization.
245974105 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 222636.
The product of its (nonzero) digits is 50400, while the sum is 37.
The square root of 245974105 is about 15683.5616171838. The cubic root of 245974105 is about 626.5606692546.
The spelling of 245974105 in words is "two hundred forty-five million, nine hundred seventy-four thousand, one hundred five".
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