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10520045 = 512716567
BaseRepresentation
bin101000001000…
…010111101101
3201210110210022
4220020113231
510143120140
61013251525
7155263454
oct50102755
921713708
1010520045
115a35958
123633ba5
1322444a3
14157bb9b
15dcc0b5
hexa085ed

10520045 has 8 divisors (see below), whose sum is σ = 12724224. Its totient is φ = 8349264.

The previous prime is 10520033. The next prime is 10520047. The reversal of 10520045 is 54002501.

10520045 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 10520045 - 26 = 10519981 is a prime.

It is a super-2 number, since 2×105200452 = 221342693604050, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10520047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7649 + ... + 8918.

It is an arithmetic number, because the mean of its divisors is an integer number (1590528).

Almost surely, 210520045 is an apocalyptic number.

It is an amenable number.

10520045 is a deficient number, since it is larger than the sum of its proper divisors (2204179).

10520045 is a wasteful number, since it uses less digits than its factorization.

10520045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16699.

The product of its (nonzero) digits is 200, while the sum is 17.

The square root of 10520045 is about 3243.4618850851. The cubic root of 10520045 is about 219.1152135926.

Adding to 10520045 its reverse (54002501), we get a palindrome (64522546).

The spelling of 10520045 in words is "ten million, five hundred twenty thousand, forty-five".

Divisors: 1 5 127 635 16567 82835 2104009 10520045