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10200224561 = 75329135409
BaseRepresentation
bin10010111111111101…
…10001001100110001
3222022212112002120212
421133332301030301
5131342224141221
64404054113505
7510525323012
oct113776611461
928285462525
1010200224561
11436484075a
121b8804b895
13c67322a47
146ca9a3009
153ea75db5b
hex25ffb1331

10200224561 has 4 divisors (see below), whose sum is σ = 10200435300. Its totient is φ = 10200013824.

The previous prime is 10200224557. The next prime is 10200224579. The reversal of 10200224561 is 16542200201.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 16542200201 = 132712465863.

It can be written as a sum of positive squares in 2 ways, for example, as 3187167025 + 7013057536 = 56455^2 + 83744^2 .

It is a cyclic number.

It is not a de Polignac number, because 10200224561 - 22 = 10200224557 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10200224501) 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, 7625 + ... + 143033.

It is an arithmetic number, because the mean of its divisors is an integer number (2550108825).

Almost surely, 210200224561 is an apocalyptic number.

It is an amenable number.

10200224561 is a deficient number, since it is larger than the sum of its proper divisors (210739).

10200224561 is an equidigital number, since it uses as much as digits as its factorization.

10200224561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210738.

The product of its (nonzero) digits is 960, while the sum is 23.

Adding to 10200224561 its reverse (16542200201), we get a palindrome (26742424762).

The spelling of 10200224561 in words is "ten billion, two hundred million, two hundred twenty-four thousand, five hundred sixty-one".

Divisors: 1 75329 135409 10200224561