Search a number
-
+
108001345 = 521600269
BaseRepresentation
bin1100110111111…
…11100001000001
321112020000222211
412123333201001
5210122020340
614414502121
72450665504
oct633774101
9245200884
10108001345
1155a67011
1230204941
13194b572a
14104b513b
1597355ea
hex66ff841

108001345 has 4 divisors (see below), whose sum is σ = 129601620. Its totient is φ = 86401072.

The previous prime is 108001319. The next prime is 108001349. The reversal of 108001345 is 543100801.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 43086096 + 64915249 = 6564^2 + 8057^2 .

It is a cyclic number.

It is not a de Polignac number, because 108001345 - 27 = 108001217 is a prime.

It is not an unprimeable number, because it can be changed into a prime (108001349) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10800130 + ... + 10800139.

It is an arithmetic number, because the mean of its divisors is an integer number (32400405).

Almost surely, 2108001345 is an apocalyptic number.

It is an amenable number.

108001345 is a deficient number, since it is larger than the sum of its proper divisors (21600275).

108001345 is an equidigital number, since it uses as much as digits as its factorization.

108001345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21600274.

The product of its (nonzero) digits is 480, while the sum is 22.

The square root of 108001345 is about 10392.3695565545. The cubic root of 108001345 is about 476.2222924845. Note that the first 4 decimals are identical.

The spelling of 108001345 in words is "one hundred eight million, one thousand, three hundred forty-five".

Divisors: 1 5 21600269 108001345