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23545451144525 = 521193789453517
BaseRepresentation
bin1010101101010000110100…
…10000000110010101001101
310002100220220222021212100112
411112220122100012111031
511041232040443111100
6122024344140405405
74650050141350652
oct526503220062515
9102326828255315
1023545451144525
11755862a384872
122783323b46865
13101a43248045b
145b586a8c1c29
152ac710563b35
hex156a1a40654d

23545451144525 has 12 divisors (see below), whose sum is σ = 29220832515252. Its totient is φ = 18820571821440.

The previous prime is 23545451144461. The next prime is 23545451144603. The reversal of 23545451144525 is 52544115454532.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 90472819369 + 23454978325156 = 300787^2 + 4843034^2 .

It is not a de Polignac number, because 23545451144525 - 26 = 23545451144461 is a prime.

It is a Duffinian number.

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 11 ways as a sum of consecutive naturals, for example, 394696934 + ... + 394756583.

It is an arithmetic number, because the mean of its divisors is an integer number (2435069376271).

Almost surely, 223545451144525 is an apocalyptic number.

23545451144525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

23545451144525 is a deficient number, since it is larger than the sum of its proper divisors (5675381370727).

23545451144525 is a wasteful number, since it uses less digits than its factorization.

23545451144525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 789454720 (or 789454715 counting only the distinct ones).

The product of its digits is 9600000, while the sum is 50.

The spelling of 23545451144525 in words is "twenty-three trillion, five hundred forty-five billion, four hundred fifty-one million, one hundred forty-four thousand, five hundred twenty-five".

Divisors: 1 5 25 1193 5965 29825 789453517 3947267585 19736337925 941818045781 4709090228905 23545451144525