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325331240 = 23513625637
BaseRepresentation
bin10011011001000…
…010100100101000
3211200011112120012
4103121002210220
51131241044430
652140551052
711030161403
oct2331024450
9750145505
10325331240
111577061a3
1290b52488
13525299c0
14312c8d3a
151d864695
hex13642928

325331240 has 32 divisors (see below), whose sum is σ = 788303880. Its totient is φ = 120122112.

The previous prime is 325331233. The next prime is 325331257. The reversal of 325331240 is 42133523.

It can be written as a sum of positive squares in 4 ways, for example, as 229643716 + 95687524 = 15154^2 + 9782^2 .

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 312299 + ... + 313338.

Almost surely, 2325331240 is an apocalyptic number.

It is an amenable number.

325331240 is an abundant number, since it is smaller than the sum of its proper divisors (462972640).

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

325331240 is a wasteful number, since it uses less digits than its factorization.

325331240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 625661 (or 625657 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 23.

The square root of 325331240 is about 18036.9409823285. The cubic root of 325331240 is about 687.7679325925.

Adding to 325331240 its reverse (42133523), we get a palindrome (367464763).

The spelling of 325331240 in words is "three hundred twenty-five million, three hundred thirty-one thousand, two hundred forty".

Divisors: 1 2 4 5 8 10 13 20 26 40 52 65 104 130 260 520 625637 1251274 2502548 3128185 5005096 6256370 8133281 12512740 16266562 25025480 32533124 40666405 65066248 81332810 162665620 325331240