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20232440125 = 53325349757
BaseRepresentation
bin10010110101111100…
…101000100100111101
31221020000220110011021
4102311330220210331
5312414001041000
613143351224141
71314243621622
oct226574504475
957200813137
1020232440125
1186427597a7
123b07978051
131ba58ac781
14d9d110349
157d638211a
hex4b5f2893d

20232440125 has 16 divisors (see below), whose sum is σ = 25258354992. Its totient is φ = 16180651200.

The previous prime is 20232440119. The next prime is 20232440141. The reversal of 20232440125 is 52104423202.

It can be written as a sum of positive squares in 8 ways, for example, as 6201090009 + 14031350116 = 78747^2 + 118454^2 .

It is not a de Polignac number, because 20232440125 - 211 = 20232438077 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

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 20232440125.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 381747 + ... + 431503.

It is an arithmetic number, because the mean of its divisors is an integer number (1578647187).

Almost surely, 220232440125 is an apocalyptic number.

20232440125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20232440125 is a deficient number, since it is larger than the sum of its proper divisors (5025914867).

20232440125 is an equidigital number, since it uses as much as digits as its factorization.

20232440125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53025 (or 53015 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 25.

Adding to 20232440125 its reverse (52104423202), we get a palindrome (72336863327).

The spelling of 20232440125 in words is "twenty billion, two hundred thirty-two million, four hundred forty thousand, one hundred twenty-five".

Divisors: 1 5 25 125 3253 16265 49757 81325 248785 406625 1243925 6219625 161859521 809297605 4046488025 20232440125