Search a number
-
+
108311933 = 421257273
BaseRepresentation
bin1100111010010…
…11010101111101
321112210211001002
412131023111331
5210211440213
614425300045
72453431142
oct635132575
9245724032
10108311933
11561593a4
1230334625
1319593c02
14105563c9
159797658
hex674b57d

108311933 has 4 divisors (see below), whose sum is σ = 108569628. Its totient is φ = 108054240.

The previous prime is 108311921. The next prime is 108311939. The reversal of 108311933 is 339113801.

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 3003289 + 105308644 = 1733^2 + 10262^2 .

It is a cyclic number.

It is not a de Polignac number, because 108311933 - 214 = 108295549 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 108311896 and 108311905.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (108311939) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 128216 + ... + 129057.

It is an arithmetic number, because the mean of its divisors is an integer number (27142407).

Almost surely, 2108311933 is an apocalyptic number.

It is an amenable number.

108311933 is a deficient number, since it is larger than the sum of its proper divisors (257695).

108311933 is an equidigital number, since it uses as much as digits as its factorization.

108311933 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 257694.

The product of its (nonzero) digits is 1944, while the sum is 29.

The square root of 108311933 is about 10407.3019077953. The cubic root of 108311933 is about 476.6783589375.

The spelling of 108311933 in words is "one hundred eight million, three hundred eleven thousand, nine hundred thirty-three".

Divisors: 1 421 257273 108311933