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351125140 = 225171032721
BaseRepresentation
bin10100111011011…
…011111010010100
3220110201000010211
4110323123322110
51204342001030
654501455204
711462341312
oct2473337224
9813630124
10351125140
11170223573
1299711504
135798b372
14348c10b2
1520c5c12a
hex14edbe94

351125140 has 24 divisors (see below), whose sum is σ = 780737832. Its totient is φ = 132188160.

The previous prime is 351125119. The next prime is 351125141. The reversal of 351125140 is 41521153.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 32216976 + 318908164 = 5676^2 + 17858^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (351125141) 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, 516021 + ... + 516700.

It is an arithmetic number, because the mean of its divisors is an integer number (32530743).

Almost surely, 2351125140 is an apocalyptic number.

It is an amenable number.

351125140 is an abundant number, since it is smaller than the sum of its proper divisors (429612692).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

351125140 is a wasteful number, since it uses less digits than its factorization.

351125140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1032747 (or 1032745 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 22.

The square root of 351125140 is about 18738.3334371016. Note that the first 3 decimals coincide. The cubic root of 351125140 is about 705.4842271314.

Adding to 351125140 its reverse (41521153), we get a palindrome (392646293).

The spelling of 351125140 in words is "three hundred fifty-one million, one hundred twenty-five thousand, one hundred forty".

Divisors: 1 2 4 5 10 17 20 34 68 85 170 340 1032721 2065442 4130884 5163605 10327210 17556257 20654420 35112514 70225028 87781285 175562570 351125140