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324640680 = 2335721331137
BaseRepresentation
bin10011010110011…
…001111110101000
3211121212110021220
4103112121332220
51131102000210
652114102040
711021254200
oct2326317650
9747773256
10324640680
11157284391
129087a920
13523475a0
1431189400
151d779c70
hex13599fa8

324640680 has 384 divisors, whose sum is σ = 1268628480. Its totient is φ = 65802240.

The previous prime is 324640643. The next prime is 324640681. The reversal of 324640680 is 86046423.

It is a super-2 number, since 2×3246406802 = 210783142221724800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (324640681) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 2369572 + ... + 2369708.

It is an arithmetic number, because the mean of its divisors is an integer number (3303720).

Almost surely, 2324640680 is an apocalyptic number.

324640680 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 324640680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (634314240).

324640680 is an abundant number, since it is smaller than the sum of its proper divisors (943987800).

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

324640680 is a wasteful number, since it uses less digits than its factorization.

324640680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 209 (or 198 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 33.

The square root of 324640680 is about 18017.7878775392. The cubic root of 324640680 is about 687.2809607444.

The spelling of 324640680 in words is "three hundred twenty-four million, six hundred forty thousand, six hundred eighty".