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10517420 = 225525871
BaseRepresentation
bin101000000111…
…101110101100
3201210100012002
4220013232230
510143024140
61013231432
7155253014
oct50075654
921710162
1010517420
115a33991
123632578
132243234
14157ac44
15dcb415
hexa07bac

10517420 has 12 divisors (see below), whose sum is σ = 22086624. Its totient is φ = 4206960.

The previous prime is 10517411. The next prime is 10517447. The reversal of 10517420 is 2471501.

10517420 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×105174202 = 221232246912800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 525871 = 10517420 / (1 + 0 + 5 + 1 + 7 + 4 + 2 + 0).

It is a junction number, because it is equal to n+sod(n) for n = 10517392 and 10517401.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 262916 + ... + 262955.

It is an arithmetic number, because the mean of its divisors is an integer number (1840552).

Almost surely, 210517420 is an apocalyptic number.

10517420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10517420 is an abundant number, since it is smaller than the sum of its proper divisors (11569204).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10517420 is a wasteful number, since it uses less digits than its factorization.

10517420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 525880 (or 525878 counting only the distinct ones).

The product of its (nonzero) digits is 280, while the sum is 20.

The square root of 10517420 is about 3243.0571996189. The cubic root of 10517420 is about 219.0969872674.

Adding to 10517420 its reverse (2471501), we get a palindrome (12988921).

The spelling of 10517420 in words is "ten million, five hundred seventeen thousand, four hundred twenty".

Divisors: 1 2 4 5 10 20 525871 1051742 2103484 2629355 5258710 10517420