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10200643 = 31329053
BaseRepresentation
bin100110111010…
…011001000011
3201012020122121
4212322121003
510102410033
61002345111
7152463325
oct46723103
921166577
1010200643
115837992
1234bb197
132161cab
1414d7615
15d6762d
hex9ba643

10200643 has 4 divisors (see below), whose sum is σ = 10529728. Its totient is φ = 9871560.

The previous prime is 10200637. The next prime is 10200679. The reversal of 10200643 is 34600201.

10200643 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 10200643 - 25 = 10200611 is a prime.

It is a super-2 number, since 2×102006432 = 208106235226898, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10200613) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 164496 + ... + 164557.

It is an arithmetic number, because the mean of its divisors is an integer number (2632432).

Almost surely, 210200643 is an apocalyptic number.

10200643 is a deficient number, since it is larger than the sum of its proper divisors (329085).

10200643 is an equidigital number, since it uses as much as digits as its factorization.

10200643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 329084.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 10200643 is about 3193.8445485026. The cubic root of 10200643 is about 216.8748455402.

Adding to 10200643 its reverse (34600201), we get a palindrome (44800844).

The spelling of 10200643 in words is "ten million, two hundred thousand, six hundred forty-three".

Divisors: 1 31 329053 10200643