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32540105 = 513297397
BaseRepresentation
bin111110000100…
…0010111001001
32021020012122002
41330020113021
531312240410
63121240345
7543405053
oct174102711
967205562
1032540105
1117405954
12aa930b5
136984200
1444708d3
152ccb7a5
hex1f085c9

32540105 has 24 divisors (see below), whose sum is σ = 42826392. Its totient is φ = 23721984.

The previous prime is 32540087. The next prime is 32540113. The reversal of 32540105 is 50104523.

It can be written as a sum of positive squares in 12 ways, for example, as 16516096 + 16024009 = 4064^2 + 4003^2 .

It is not a de Polignac number, because 32540105 - 26 = 32540041 is a prime.

It is a super-2 number, since 2×325401052 = 2117716866822050, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 81767 + ... + 82163.

It is an arithmetic number, because the mean of its divisors is an integer number (1784433).

Almost surely, 232540105 is an apocalyptic number.

It is an amenable number.

32540105 is a deficient number, since it is larger than the sum of its proper divisors (10286287).

32540105 is a wasteful number, since it uses less digits than its factorization.

32540105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 525 (or 512 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 20.

The square root of 32540105 is about 5704.3934822205. The cubic root of 32540105 is about 319.2564278240.

Adding to 32540105 its reverse (50104523), we get a palindrome (82644628).

The spelling of 32540105 in words is "thirty-two million, five hundred forty thousand, one hundred five".

Divisors: 1 5 13 65 97 169 397 485 845 1261 1985 5161 6305 16393 25805 38509 67093 81965 192545 335465 500617 2503085 6508021 32540105