Search a number
-
+
107888393 = 769140297
BaseRepresentation
bin1100110111000…
…11111100001001
321112000022001102
412123203330021
5210104412033
614412231145
72450015264
oct633437411
9245008042
10107888393
115599a168
123016b4b5
13194761b2
1410485cdb
159711de8
hex66e3f09

107888393 has 4 divisors (see below), whose sum is σ = 108029460. Its totient is φ = 107747328.

The previous prime is 107888371. The next prime is 107888399. The reversal of 107888393 is 393888701.

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 50310649 + 57577744 = 7093^2 + 7588^2 .

It is a cyclic number.

It is not a de Polignac number, because 107888393 - 212 = 107884297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (107888399) 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, 69380 + ... + 70917.

It is an arithmetic number, because the mean of its divisors is an integer number (27007365).

Almost surely, 2107888393 is an apocalyptic number.

It is an amenable number.

107888393 is a deficient number, since it is larger than the sum of its proper divisors (141067).

107888393 is an equidigital number, since it uses as much as digits as its factorization.

107888393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141066.

The product of its (nonzero) digits is 290304, while the sum is 47.

The square root of 107888393 is about 10386.9337631469. The cubic root of 107888393 is about 476.0562173204.

The spelling of 107888393 in words is "one hundred seven million, eight hundred eighty-eight thousand, three hundred ninety-three".

Divisors: 1 769 140297 107888393