Base | Representation |
---|---|
bin | 100100110000111101… |
… | …1011100111011000101 |
3 | 21112210022211210002112 |
4 | 1021201323130323011 |
5 | 2243143302324440 |
6 | 100134211350405 |
7 | 5463341132045 |
oct | 1114173347305 |
9 | 245708753075 |
10 | 78952386245 |
11 | 30535622397 |
12 | 13374bb2405 |
13 | 75a3096715 |
14 | 3b6d995725 |
15 | 20c1534965 |
hex | 1261edcec5 |
78952386245 has 8 divisors (see below), whose sum is σ = 96530465016. Its totient is φ = 61970174656.
The previous prime is 78952386241. The next prime is 78952386257. The reversal of 78952386245 is 54268325987.
It can be written as a sum of positive squares in 4 ways, for example, as 1645032481 + 77307353764 = 40559^2 + 278042^2 .
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 78952386245 - 22 = 78952386241 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (78952386241) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 148966502 + ... + 148967031.
It is an arithmetic number, because the mean of its divisors is an integer number (12066308127).
Almost surely, 278952386245 is an apocalyptic number.
It is an amenable number.
78952386245 is a deficient number, since it is larger than the sum of its proper divisors (17578078771).
78952386245 is a wasteful number, since it uses less digits than its factorization.
78952386245 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 297933591.
The product of its digits is 29030400, while the sum is 59.
The spelling of 78952386245 in words is "seventy-eight billion, nine hundred fifty-two million, three hundred eighty-six thousand, two hundred forty-five".
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