Base | Representation |
---|---|
bin | 11011100011001… |
… | …01011100100101 |
3 | 121002212012200102 |
4 | 31301211130211 |
5 | 433130232440 |
6 | 34533153445 |
7 | 5504223323 |
oct | 1561453445 |
9 | 532765612 |
10 | 231102245 |
11 | 1094a65a0 |
12 | 6548b885 |
13 | 38b56bba |
14 | 2299ad13 |
15 | 1544eb15 |
hex | dc65725 |
231102245 has 16 divisors (see below), whose sum is σ = 303816960. Its totient is φ = 167361600.
The previous prime is 231102239. The next prime is 231102251. The reversal of 231102245 is 542201132.
It is an interprime number because it is at equal distance from previous prime (231102239) and next prime (231102251).
It is not a de Polignac number, because 231102245 - 28 = 231101989 is a prime.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4355 + ... + 21935.
It is an arithmetic number, because the mean of its divisors is an integer number (18988560).
Almost surely, 2231102245 is an apocalyptic number.
It is an amenable number.
231102245 is a deficient number, since it is larger than the sum of its proper divisors (72714715).
231102245 is a wasteful number, since it uses less digits than its factorization.
231102245 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 17836.
The product of its (nonzero) digits is 480, while the sum is 20.
The square root of 231102245 is about 15202.0473950057. The cubic root of 231102245 is about 613.6697579000.
Adding to 231102245 its reverse (542201132), we get a palindrome (773303377).
The spelling of 231102245 in words is "two hundred thirty-one million, one hundred two thousand, two hundred forty-five".
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