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20242434125 = 53161939473
BaseRepresentation
bin10010110110100010…
…110000100001001101
31221020201201012100102
4102312202300201031
5312424030343000
613144345340445
71314424564634
oct226642604115
957221635312
1020242434125
118648365401
123b0b197725
131ba799b694
14da059251b
157d71a83d5
hex4b68b084d

20242434125 has 8 divisors (see below), whose sum is σ = 25262557944. Its totient is φ = 16193947200.

The previous prime is 20242434119. The next prime is 20242434127. The reversal of 20242434125 is 52143424202.

It can be written as a sum of positive squares in 4 ways, for example, as 3264865321 + 16977568804 = 57139^2 + 130298^2 .

It is not a de Polignac number, because 20242434125 - 24 = 20242434109 is a prime.

It is a super-2 number, since 2×202424341252 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20242434127) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 80969612 + ... + 80969861.

It is an arithmetic number, because the mean of its divisors is an integer number (3157819743).

Almost surely, 220242434125 is an apocalyptic number.

20242434125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20242434125 is a deficient number, since it is larger than the sum of its proper divisors (5020123819).

20242434125 is an equidigital number, since it uses as much as digits as its factorization.

20242434125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161939488 (or 161939478 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 29.

Adding to 20242434125 its reverse (52143424202), we get a palindrome (72385858327).

The spelling of 20242434125 in words is "twenty billion, two hundred forty-two million, four hundred thirty-four thousand, one hundred twenty-five".

Divisors: 1 5 25 125 161939473 809697365 4048486825 20242434125