| Base | Representation |
|---|---|
| bin | 1111001100011101… |
| … | …0011100101010000 |
| 3 | 101112020221102111221 |
| 4 | 3303013103211100 |
| 5 | 31323131404304 |
| 6 | 1512422214424 |
| 7 | 203035022050 |
| oct | 36307234520 |
| 9 | 11466842457 |
| 10 | 4078778704 |
| 11 | 18034008a0 |
| 12 | 959b84414 |
| 13 | 500044c30 |
| 14 | 2a99bd560 |
| 15 | 18d137054 |
| hex | f31d3950 |
4078778704 has 160 divisors (see below), whose sum is σ = 10665817344. Its totient is φ = 1459261440.
The previous prime is 4078778701. The next prime is 4078778707.
It is a happy number.
4078778704 is nontrivially palindromic in base 10.
4078778704 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is an interprime number because it is at equal distance from previous prime (4078778701) and next prime (4078778707).
It is a super-5 number, since 5×40787787045 (a number of 49 digits) contains 55555 as substring.
It is a Harshad number since it is a multiple of its sum of digits (52).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (4078778701) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3731182 + ... + 3732274.
Almost surely, 24078778704 is an apocalyptic number.
4078778704 is a gapful number since it is divisible by the number (44) 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 4078778704, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5332908672).
4078778704 is an abundant number, since it is smaller than the sum of its proper divisors (6587038640).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
4078778704 is a wasteful number, since it uses less digits than its factorization.
4078778704 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1365 (or 1359 counting only the distinct ones).
The product of its (nonzero) digits is 2458624, while the sum is 52.
The square root of 4078778704 is about 63865.3169098847. The cubic root of 4078778704 is about 1597.7544937879.
The spelling of 4078778704 in words is "four billion, seventy-eight million, seven hundred seventy-eight thousand, seven hundred four".
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