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10144200065 = 52028840013
BaseRepresentation
bin10010111001010010…
…00011010110000001
3222011222002202102112
421130221003112001
5131233403400230
64354333225105
7506245164206
oct113451032601
928158082375
1010144200065
11433615571a
121b71332195
13c5883845c
146c337bcad
153e5893d95
hex25ca43581

10144200065 has 4 divisors (see below), whose sum is σ = 12173040084. Its totient is φ = 8115360048.

The previous prime is 10144200061. The next prime is 10144200107. The reversal of 10144200065 is 56000244101.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 56000244101 = 167335330803.

It can be written as a sum of positive squares in 2 ways, for example, as 2373248656 + 7770951409 = 48716^2 + 88153^2 .

It is a cyclic number.

It is not a de Polignac number, because 10144200065 - 22 = 10144200061 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 10144200065.

It is not an unprimeable number, because it can be changed into a prime (10144200061) 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, 1014420002 + ... + 1014420011.

It is an arithmetic number, because the mean of its divisors is an integer number (3043260021).

Almost surely, 210144200065 is an apocalyptic number.

It is an amenable number.

10144200065 is a deficient number, since it is larger than the sum of its proper divisors (2028840019).

10144200065 is an equidigital number, since it uses as much as digits as its factorization.

10144200065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2028840018.

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

Adding to 10144200065 its reverse (56000244101), we get a palindrome (66144444166).

The spelling of 10144200065 in words is "ten billion, one hundred forty-four million, two hundred thousand, sixty-five".

Divisors: 1 5 2028840013 10144200065