| Base | Representation |
|---|---|
| bin | 100100100000001000… |
| … | …1110101000100111000 |
| 3 | 21111022222112012101212 |
| 4 | 1021000101311010320 |
| 5 | 2241014240431000 |
| 6 | 100002203102252 |
| 7 | 5443344351530 |
| oct | 1110021650470 |
| 9 | 244288465355 |
| 10 | 78387827000 |
| 11 | 302759806aa |
| 12 | 13237b11988 |
| 13 | 75131293b2 |
| 14 | 3b189d64c0 |
| 15 | 208bbb7c35 |
| hex | 1240475138 |
78387827000 has 128 divisors (see below), whose sum is σ = 210451962240. Its totient is φ = 26770636800.
The previous prime is 78387826973. The next prime is 78387827017. The reversal of 78387827000 is 72878387.
It is a super-2 number, since 2×783878270002 (a number of 23 digits) contains 22 as substring.
It is a hoax number, since the sum of its digits (50) coincides with the sum of the digits of its distinct prime factors.
It is a Harshad number since it is a multiple of its sum of digits (50).
It is a self number, because there is not a number n which added to its sum of digits gives 78387827000.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1777214 + ... + 1820786.
It is an arithmetic number, because the mean of its divisors is an integer number (1644155955).
Almost surely, 278387827000 is an apocalyptic number.
78387827000 is a gapful number since it is divisible by the number (70) 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 78387827000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (105225981120).
78387827000 is an abundant number, since it is smaller than the sum of its proper divisors (132064135240).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
78387827000 is a wasteful number, since it uses less digits than its factorization.
78387827000 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 43858 (or 43844 counting only the distinct ones).
The product of its (nonzero) digits is 1053696, while the sum is 50.
The spelling of 78387827000 in words is "seventy-eight billion, three hundred eighty-seven million, eight hundred twenty-seven thousand".
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