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10554385 = 52110877
BaseRepresentation
bin101000010000…
…110000010001
3201212012220011
4220100300101
510200220020
61014114521
7155465542
oct50206021
921765804
1010554385
115a59736
12364ba41
132256cca
14158a4c9
15dd735a
hexa10c11

10554385 has 4 divisors (see below), whose sum is σ = 12665268. Its totient is φ = 8443504.

The previous prime is 10554359. The next prime is 10554389. The reversal of 10554385 is 58345501.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 58345501 = 411423061.

It can be written as a sum of positive squares in 2 ways, for example, as 7997584 + 2556801 = 2828^2 + 1599^2 .

It is a cyclic number.

It is not a de Polignac number, because 10554385 - 217 = 10423313 is a prime.

It is a super-2 number, since 2×105543852 = 222790085456450, which contains 22 as substring.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10554389) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1055434 + ... + 1055443.

It is an arithmetic number, because the mean of its divisors is an integer number (3166317).

Almost surely, 210554385 is an apocalyptic number.

It is an amenable number.

10554385 is a deficient number, since it is larger than the sum of its proper divisors (2110883).

10554385 is an equidigital number, since it uses as much as digits as its factorization.

10554385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2110882.

The product of its (nonzero) digits is 12000, while the sum is 31.

The square root of 10554385 is about 3248.7512985761. The cubic root of 10554385 is about 219.3533698638.

Adding to 10554385 its reverse (58345501), we get a palindrome (68899886).

The spelling of 10554385 in words is "ten million, five hundred fifty-four thousand, three hundred eighty-five".

Divisors: 1 5 2110877 10554385