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140225911 = 7171178369
BaseRepresentation
bin10000101101110…
…10110101110111
3100202212012210021
420112322311313
5241344212121
621525310011
73321620620
oct1026726567
9322765707
10140225911
1172176891
123ab65307
1323089117
14148a2a47
15c49d641
hex85bad77

140225911 has 8 divisors (see below), whose sum is σ = 169685280. Its totient is φ = 113123328.

The previous prime is 140225903. The next prime is 140225971. The reversal of 140225911 is 119522041.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 140225911 - 23 = 140225903 is a prime.

It is a super-2 number, since 2×1402259112 = 39326612231559842, which 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 (140225971) 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 7 ways as a sum of consecutive naturals, for example, 589066 + ... + 589303.

It is an arithmetic number, because the mean of its divisors is an integer number (21210660).

Almost surely, 2140225911 is an apocalyptic number.

140225911 is a deficient number, since it is larger than the sum of its proper divisors (29459369).

140225911 is a wasteful number, since it uses less digits than its factorization.

140225911 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1178393.

The product of its (nonzero) digits is 720, while the sum is 25.

The square root of 140225911 is about 11841.7022002751. The cubic root of 140225911 is about 519.5285556948.

Adding to 140225911 its reverse (119522041), we get a palindrome (259747952).

The spelling of 140225911 in words is "one hundred forty million, two hundred twenty-five thousand, nine hundred eleven".

Divisors: 1 7 17 119 1178369 8248583 20032273 140225911