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140312425 = 5211510227
BaseRepresentation
bin10000101110011…
…11111101101001
3100210000121110111
420113033331221
5241404444200
621531214321
73322431061
oct1027177551
9323017414
10140312425
1172225890
123aba73a1
13230b9606
14148c63a1
15c4b90ba
hex85cff69

140312425 has 12 divisors (see below), whose sum is σ = 189804816. Its totient is φ = 102045200.

The previous prime is 140312423. The next prime is 140312449. The reversal of 140312425 is 524213041.

It is not a de Polignac number, because 140312425 - 21 = 140312423 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 140312396 and 140312405.

It is not an unprimeable number, because it can be changed into a prime (140312423) 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 11 ways as a sum of consecutive naturals, for example, 254839 + ... + 255388.

It is an arithmetic number, because the mean of its divisors is an integer number (15817068).

Almost surely, 2140312425 is an apocalyptic number.

It is an amenable number.

140312425 is a deficient number, since it is larger than the sum of its proper divisors (49492391).

140312425 is a wasteful number, since it uses less digits than its factorization.

140312425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 510248 (or 510243 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 140312425 is about 11845.3545746845. The cubic root of 140312425 is about 519.6353767830.

Adding to 140312425 its reverse (524213041), we get a palindrome (664525466).

The spelling of 140312425 in words is "one hundred forty million, three hundred twelve thousand, four hundred twenty-five".

Divisors: 1 5 11 25 55 275 510227 2551135 5612497 12755675 28062485 140312425