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10520245 = 54789503
BaseRepresentation
bin101000001000…
…011010110101
3201210111001201
4220020122311
510143121440
61013252501
7155264161
oct50103265
921714051
1010520245
115a3601a
123634131
1322445c8
14157bca1
15dcc19a
hexa086b5

10520245 has 16 divisors (see below), whose sum is σ = 13063680. Its totient is φ = 8128384.

The previous prime is 10520227. The next prime is 10520291. The reversal of 10520245 is 54202501.

It is a cyclic number.

It is not a de Polignac number, because 10520245 - 27 = 10520117 is a prime.

It is a super-2 number, since 2×105202452 = 221351109720050, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20664 + ... + 21166.

It is an arithmetic number, because the mean of its divisors is an integer number (816480).

Almost surely, 210520245 is an apocalyptic number.

It is an amenable number.

10520245 is a deficient number, since it is larger than the sum of its proper divisors (2543435).

10520245 is an equidigital number, since it uses as much as digits as its factorization.

10520245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 644.

The product of its (nonzero) digits is 400, while the sum is 19.

The square root of 10520245 is about 3243.4927161935. The cubic root of 10520245 is about 219.1166021407.

Adding to 10520245 its reverse (54202501), we get a palindrome (64722746).

The spelling of 10520245 in words is "ten million, five hundred twenty thousand, two hundred forty-five".

Divisors: 1 5 47 89 235 445 503 2515 4183 20915 23641 44767 118205 223835 2104049 10520245