Search a number
-
+
107081693 = 157682049
BaseRepresentation
bin1100110000111…
…10111111011101
321110111022110122
412120132333131
5204403103233
614343044325
72440115345
oct630367735
9243438418
10107081693
1155499074
122ba406a5
1319252c64
1410315d25
159602d98
hex661efdd

107081693 has 4 divisors (see below), whose sum is σ = 107763900. Its totient is φ = 106399488.

The previous prime is 107081687. The next prime is 107081707. The reversal of 107081693 is 396180701.

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 11002489 + 96079204 = 3317^2 + 9802^2 .

It is a cyclic number.

It is not a de Polignac number, because 107081693 - 210 = 107080669 is a prime.

It is a super-2 number, since 2×1070816932 = 22932977951492498, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (107081603) 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, 340868 + ... + 341181.

It is an arithmetic number, because the mean of its divisors is an integer number (26940975).

Almost surely, 2107081693 is an apocalyptic number.

It is an amenable number.

107081693 is a deficient number, since it is larger than the sum of its proper divisors (682207).

107081693 is an equidigital number, since it uses as much as digits as its factorization.

107081693 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 682206.

The product of its (nonzero) digits is 9072, while the sum is 35.

The square root of 107081693 is about 10348.0284595666. The cubic root of 107081693 is about 474.8667297403.

The spelling of 107081693 in words is "one hundred seven million, eighty-one thousand, six hundred ninety-three".

Divisors: 1 157 682049 107081693