Search a number
-
+
107683391 = 1013310627
BaseRepresentation
bin1100110101100…
…01111000111111
321111121212211202
412122301320333
5210031332031
614404010115
72445202514
oct632617077
9244555752
10107683391
115586a142
123009093b
1319403aaa
141043130b
1596c12cb
hex66b1e3f

107683391 has 4 divisors (see below), whose sum is σ = 107704152. Its totient is φ = 107662632.

The previous prime is 107683363. The next prime is 107683403. The reversal of 107683391 is 193386701.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 193386701 = 1015119051.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-107683391 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (107683091) 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, 4820 + ... + 15446.

It is an arithmetic number, because the mean of its divisors is an integer number (26926038).

Almost surely, 2107683391 is an apocalyptic number.

107683391 is a deficient number, since it is larger than the sum of its proper divisors (20761).

107683391 is a wasteful number, since it uses less digits than its factorization.

107683391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20760.

The product of its (nonzero) digits is 27216, while the sum is 38.

The square root of 107683391 is about 10377.0608073770. The cubic root of 107683391 is about 475.7545032000.

The spelling of 107683391 in words is "one hundred seven million, six hundred eighty-three thousand, three hundred ninety-one".

Divisors: 1 10133 10627 107683391