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10520005 = 531671013
BaseRepresentation
bin101000001000…
…010111000101
3201210110201211
4220020113011
510143120010
61013251421
7155263366
oct50102705
921713654
1010520005
115a35921
123633b71
132244472
14157bb6d
15dcc08a
hexa085c5

10520005 has 16 divisors (see below), whose sum is σ = 13238784. Its totient is φ = 8015040.

The previous prime is 10519981. The next prime is 10520017. The reversal of 10520005 is 50002501.

It is not a de Polignac number, because 10520005 - 25 = 10519973 is a prime.

It is a super-2 number, since 2×105200052 = 221341010400050, 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 15 ways as a sum of consecutive naturals, for example, 9879 + ... + 10891.

It is an arithmetic number, because the mean of its divisors is an integer number (827424).

Almost surely, 210520005 is an apocalyptic number.

It is an amenable number.

10520005 is a deficient number, since it is larger than the sum of its proper divisors (2718779).

10520005 is a wasteful number, since it uses less digits than its factorization.

10520005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1116.

The product of its (nonzero) digits is 50, while the sum is 13.

The square root of 10520005 is about 3243.4557188283. The cubic root of 10520005 is about 219.1149358808.

Adding to 10520005 its reverse (50002501), we get a palindrome (60522506).

The spelling of 10520005 in words is "ten million, five hundred twenty thousand, five".

Divisors: 1 5 31 67 155 335 1013 2077 5065 10385 31403 67871 157015 339355 2104001 10520005