Base | Representation |
---|---|
bin | 1001010101111… |
… | …10111111110110 |
3 | 12110110221222000 |
4 | 10222332333312 |
5 | 130031030300 |
6 | 11435520130 |
7 | 1641123141 |
oct | 452767766 |
9 | 173427860 |
10 | 78376950 |
11 | 40272843 |
12 | 222b9046 |
13 | 133126c2 |
14 | a5a3058 |
15 | 6d32c00 |
hex | 4abeff6 |
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".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.103 sec. • engine limits •