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10506775 = 52420271
BaseRepresentation
bin101000000101…
…001000010111
3201202210120211
4220011020113
510142204100
61013110251
7155206666
oct50051027
921683524
1010506775
115a26994
123628387
13223b436
141576ddd
15dc81ba
hexa05217

10506775 has 6 divisors (see below), whose sum is σ = 13028432. Its totient is φ = 8405400.

The previous prime is 10506767. The next prime is 10506841. The reversal of 10506775 is 57760501.

It is not a de Polignac number, because 10506775 - 23 = 10506767 is a prime.

It is a super-2 number, since 2×105067752 = 220784641801250, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 210111 + ... + 210160.

Almost surely, 210506775 is an apocalyptic number.

10506775 is a deficient number, since it is larger than the sum of its proper divisors (2521657).

10506775 is an equidigital number, since it uses as much as digits as its factorization.

10506775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 420281 (or 420276 counting only the distinct ones).

The product of its (nonzero) digits is 7350, while the sum is 31.

The square root of 10506775 is about 3241.4155858205. The cubic root of 10506775 is about 219.0230440782.

The spelling of 10506775 in words is "ten million, five hundred six thousand, seven hundred seventy-five".

Divisors: 1 5 25 420271 2101355 10506775