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140315425 = 5231118047
BaseRepresentation
bin10000101110100…
…00101100100001
3100210000202120121
420113100230201
5241410043200
621531240241
73322442605
oct1027205441
9323022517
10140315425
1172228068
123aba9081
13230baaa3
14148c7505
15c4b9e1a
hex85d0b21

140315425 has 12 divisors (see below), whose sum is σ = 174560256. Its totient is φ = 111885200.

The previous prime is 140315423. The next prime is 140315429. The reversal of 140315425 is 524513041.

It is a happy number.

It is not a de Polignac number, because 140315425 - 21 = 140315423 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 140315425.

It is not an unprimeable number, because it can be changed into a prime (140315423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1249 + ... + 16798.

It is an arithmetic number, because the mean of its divisors is an integer number (14546688).

Almost surely, 2140315425 is an apocalyptic number.

It is an amenable number.

140315425 is a deficient number, since it is larger than the sum of its proper divisors (34244831).

140315425 is a wasteful number, since it uses less digits than its factorization.

140315425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18368 (or 18363 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 140315425 is about 11845.4812059283. The cubic root of 140315425 is about 519.6390801733.

Adding to 140315425 its reverse (524513041), we get a palindrome (664828466).

The spelling of 140315425 in words is "one hundred forty million, three hundred fifteen thousand, four hundred twenty-five".

Divisors: 1 5 25 311 1555 7775 18047 90235 451175 5612617 28063085 140315425