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78376950 = 2335258057
BaseRepresentation
bin1001010101111…
…10111111110110
312110110221222000
410222332333312
5130031030300
611435520130
71641123141
oct452767766
9173427860
1078376950
1140272843
12222b9046
13133126c2
14a5a3058
156d32c00
hex4abeff6

78376950 has 48 divisors (see below), whose sum is σ = 215975760. Its totient is φ = 20900160.

The previous prime is 78376901. The next prime is 78376951. The reversal of 78376950 is 5967387.

It is a happy number.

It is a super-2 number, since 2×783769502 = 12285892582605000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a junction number, because it is equal to n+sod(n) for n = 78376896 and 78376905.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78376951) 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, 27679 + ... + 30378.

It is an arithmetic number, because the mean of its divisors is an integer number (4499495).

Almost surely, 278376950 is an apocalyptic number.

78376950 is an abundant number, since it is smaller than the sum of its proper divisors (137598810).

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

78376950 is a wasteful number, since it uses less digits than its factorization.

78376950 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58078 (or 58067 counting only the distinct ones).

The product of its (nonzero) digits is 317520, while the sum is 45.

The square root of 78376950 is about 8853.0757367143. The cubic root of 78376950 is about 427.9530438776.

The spelling of 78376950 in words is "seventy-eight million, three hundred seventy-six thousand, nine hundred fifty".

Divisors: 1 2 3 5 6 9 10 15 18 25 27 30 45 50 54 75 90 135 150 225 270 450 675 1350 58057 116114 174171 290285 348342 522513 580570 870855 1045026 1451425 1567539 1741710 2612565 2902850 3135078 4354275 5225130 7837695 8708550 13062825 15675390 26125650 39188475 78376950