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518964950 = 25271787221
BaseRepresentation
bin11110111011101…
…100011011010110
31100011112011002002
4132323230123112
52030323334300
6123255115302
715601062230
oct3673543326
91304464062
10518964950
11246a40059
12125972b32
138369536a
144ccd1250
15308625d5
hex1eeec6d6

518964950 has 48 divisors (see below), whose sum is σ = 1168077024. Its totient is φ = 167462400.

The previous prime is 518964949. The next prime is 518964959. The reversal of 518964950 is 59469815.

It is a happy number.

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 518964895 and 518964904.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (518964959) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 37661 + ... + 49560.

It is an arithmetic number, because the mean of its divisors is an integer number (24334938).

Almost surely, 2518964950 is an apocalyptic number.

518964950 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

518964950 is an abundant number, since it is smaller than the sum of its proper divisors (649112074).

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

518964950 is a wasteful number, since it uses less digits than its factorization.

518964950 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87257 (or 87252 counting only the distinct ones).

The product of its (nonzero) digits is 388800, while the sum is 47.

The square root of 518964950 is about 22780.8022246803. The cubic root of 518964950 is about 803.6112521686.

The spelling of 518964950 in words is "five hundred eighteen million, nine hundred sixty-four thousand, nine hundred fifty".

Divisors: 1 2 5 7 10 14 17 25 34 35 50 70 85 119 170 175 238 350 425 595 850 1190 2975 5950 87221 174442 436105 610547 872210 1221094 1482757 2180525 2965514 3052735 4361050 6105470 7413785 10379299 14827570 15263675 20758598 30527350 37068925 51896495 74137850 103792990 259482475 518964950