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20102144341 = 109718324653
BaseRepresentation
bin10010101110001011…
…100110000101010101
31220212221201201221111
4102232023212011111
5312132122104331
613122414415021
71311102256546
oct225613460525
956787651844
1020102144341
118586155634
123a90201471
131b848bc486
14d89ab44cd
157c9be5db1
hex4ae2e6155

20102144341 has 4 divisors (see below), whose sum is σ = 20120470092. Its totient is φ = 20083818592.

The previous prime is 20102144299. The next prime is 20102144369. The reversal of 20102144341 is 14344120102.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 6447287025 + 13654857316 = 80295^2 + 116854^2 .

It is a cyclic number.

It is not a de Polignac number, because 20102144341 - 27 = 20102144213 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20102142341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9161230 + ... + 9163423.

It is an arithmetic number, because the mean of its divisors is an integer number (5030117523).

Almost surely, 220102144341 is an apocalyptic number.

It is an amenable number.

20102144341 is a deficient number, since it is larger than the sum of its proper divisors (18325751).

20102144341 is a wasteful number, since it uses less digits than its factorization.

20102144341 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18325750.

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 20102144341 its reverse (14344120102), we get a palindrome (34446264443).

The spelling of 20102144341 in words is "twenty billion, one hundred two million, one hundred forty-four thousand, three hundred forty-one".

Divisors: 1 1097 18324653 20102144341