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105228485 = 521045697
BaseRepresentation
bin1100100010110…
…10100011000101
321100000011100022
412101122203011
5203414302420
614235224525
72415266405
oct621324305
9240004308
10105228485
115444279a
122b2a8145
1318a5459b
14dd92805
159388c25
hex645a8c5

105228485 has 4 divisors (see below), whose sum is σ = 126274188. Its totient is φ = 84182784.

The previous prime is 105228463. The next prime is 105228493. The reversal of 105228485 is 584822501.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 584822501 = 2741213361.

It can be written as a sum of positive squares in 2 ways, for example, as 68674369 + 36554116 = 8287^2 + 6046^2 .

It is a cyclic number.

It is not a de Polignac number, because 105228485 - 212 = 105224389 is a prime.

It is a super-2 number, since 2×1052284852 = 22146068110790450, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10522844 + ... + 10522853.

It is an arithmetic number, because the mean of its divisors is an integer number (31568547).

Almost surely, 2105228485 is an apocalyptic number.

It is an amenable number.

105228485 is a deficient number, since it is larger than the sum of its proper divisors (21045703).

105228485 is an equidigital number, since it uses as much as digits as its factorization.

105228485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21045702.

The product of its (nonzero) digits is 25600, while the sum is 35.

The square root of 105228485 is about 10258.0936338094. The cubic root of 105228485 is about 472.1113476770. Note that the first 3 decimals are identical.

The spelling of 105228485 in words is "one hundred five million, two hundred twenty-eight thousand, four hundred eighty-five".

Divisors: 1 5 21045697 105228485