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10503385 = 57129587
BaseRepresentation
bin101000000100…
…010011011001
3201202121221021
4220010103121
510142102020
61013042441
7155164054
oct50042331
921677837
1010503385
115a24392
123626421
132239a29
141575a9b
15dc71aa
hexa044d9

10503385 has 8 divisors (see below), whose sum is σ = 12782016. Its totient is φ = 8284080.

The previous prime is 10503377. The next prime is 10503397. The reversal of 10503385 is 58330501.

It is a happy number.

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

It is not a de Polignac number, because 10503385 - 23 = 10503377 is a prime.

It is a super-2 number, since 2×105033852 = 220642192916450, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14439 + ... + 15148.

It is an arithmetic number, because the mean of its divisors is an integer number (1597752).

Almost surely, 210503385 is an apocalyptic number.

It is an amenable number.

10503385 is a deficient number, since it is larger than the sum of its proper divisors (2278631).

10503385 is an equidigital number, since it uses as much as digits as its factorization.

10503385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29663.

The product of its (nonzero) digits is 1800, while the sum is 25.

The square root of 10503385 is about 3240.8926239541. The cubic root of 10503385 is about 218.9994856920. Note that the first 3 decimals are identical.

Adding to 10503385 its reverse (58330501), we get a palindrome (68833886).

The spelling of 10503385 in words is "ten million, five hundred three thousand, three hundred eighty-five".

Divisors: 1 5 71 355 29587 147935 2100677 10503385