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10553805 = 325234529
BaseRepresentation
bin101000010000…
…100111001101
3201212012002200
4220100213031
510200210210
61014112113
7155464053
oct50204715
921765080
1010553805
115a59259
12364b639
132256972
14158a1d3
15dd70c0
hexa109cd

10553805 has 12 divisors (see below), whose sum is σ = 18293340. Its totient is φ = 5628672.

The previous prime is 10553801. The next prime is 10553813. The reversal of 10553805 is 50835501.

It can be written as a sum of positive squares in 2 ways, for example, as 2499561 + 8054244 = 1581^2 + 2838^2 .

It is not a de Polignac number, because 10553805 - 22 = 10553801 is a prime.

It is a super-2 number, since 2×105538052 = 222765599956050, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10553801) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 117220 + ... + 117309.

It is an arithmetic number, because the mean of its divisors is an integer number (1524445).

Almost surely, 210553805 is an apocalyptic number.

10553805 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

10553805 is a deficient number, since it is larger than the sum of its proper divisors (7739535).

10553805 is a wasteful number, since it uses less digits than its factorization.

10553805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 234540 (or 234537 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 27.

The square root of 10553805 is about 3248.6620322834. The cubic root of 10553805 is about 219.3493517145.

The spelling of 10553805 in words is "ten million, five hundred fifty-three thousand, eight hundred five".

Divisors: 1 3 5 9 15 45 234529 703587 1172645 2110761 3517935 10553805