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10520365 = 517612029
BaseRepresentation
bin101000001000…
…011100101101
3201210111020011
4220020130231
510143122430
61013253221
7155264422
oct50103455
921714204
1010520365
115a36119
123634211
13224468b
14157bd49
15dcc22a
hexa0872d

10520365 has 16 divisors (see below), whose sum is σ = 13592880. Its totient is φ = 7787520.

The previous prime is 10520309. The next prime is 10520371. The reversal of 10520365 is 56302501.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 158404 + 10361961 = 398^2 + 3219^2 .

It is not a de Polignac number, because 10520365 - 29 = 10519853 is a prime.

It is a super-2 number, since 2×105203652 = 221356159466450, which contains 22 as substring.

It is a plaindrome in base 13.

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, 4171 + ... + 6199.

It is an arithmetic number, because the mean of its divisors is an integer number (849555).

Almost surely, 210520365 is an apocalyptic number.

It is an amenable number.

10520365 is a deficient number, since it is larger than the sum of its proper divisors (3072515).

10520365 is a wasteful number, since it uses less digits than its factorization.

10520365 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2112.

The product of its (nonzero) digits is 900, while the sum is 22.

The square root of 10520365 is about 3243.5112147178. The cubic root of 10520365 is about 219.1174352611.

Adding to 10520365 its reverse (56302501), we get a palindrome (66822866).

The spelling of 10520365 in words is "ten million, five hundred twenty thousand, three hundred sixty-five".

Divisors: 1 5 17 61 85 305 1037 2029 5185 10145 34493 123769 172465 618845 2104073 10520365