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103003405 = 575127431
BaseRepresentation
bin1100010001110…
…11010100001101
321011211010002221
412020323110031
5202332102110
614115415341
72360341321
oct610732415
9234733087
10103003405
1153162a8a
122a5b4551
131845587b
14d973981
1590997da
hex623b50d

103003405 has 8 divisors (see below), whose sum is σ = 123773184. Its totient is φ = 82290000.

The previous prime is 103003403. The next prime is 103003409. The reversal of 103003405 is 504300301.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 103003405 - 21 = 103003403 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 (103003403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9961 + ... + 17470.

It is an arithmetic number, because the mean of its divisors is an integer number (15471648).

Almost surely, 2103003405 is an apocalyptic number.

It is an amenable number.

103003405 is a deficient number, since it is larger than the sum of its proper divisors (20769779).

103003405 is an equidigital number, since it uses as much as digits as its factorization.

103003405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28187.

The product of its (nonzero) digits is 180, while the sum is 16.

The square root of 103003405 is about 10149.0593160155. The cubic root of 103003405 is about 468.7599801134.

Adding to 103003405 its reverse (504300301), we get a palindrome (607303706).

The spelling of 103003405 in words is "one hundred three million, three thousand, four hundred five".

Divisors: 1 5 751 3755 27431 137155 20600681 103003405