Base | Representation |
---|---|
bin | 100100011010111000… |
… | …0011011001100000000 |
3 | 21110212200100121012112 |
4 | 1020311300123030000 |
5 | 2240134043014143 |
6 | 55532455314452 |
7 | 5436102031052 |
oct | 1106560331400 |
9 | 243780317175 |
10 | 78211298048 |
11 | 30195269904 |
12 | 131a897ba28 |
13 | 74b569c3b0 |
14 | 3add3a38d2 |
15 | 207b447e18 |
hex | 1235c1b300 |
78211298048 has 72 divisors (see below), whose sum is σ = 173923755600. Its totient is φ = 34852737024.
The previous prime is 78211298041. The next prime is 78211298059. The reversal of 78211298048 is 84089211287.
It is a super-2 number, since 2×782112980482 (a number of 23 digits) contains 22 as substring.
It is a junction number, because it is equal to n+sod(n) for n = 78211297987 and 78211298005.
It is not an unprimeable number, because it can be changed into a prime (78211298041) 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, 308678 + ... + 501701.
Almost surely, 278211298048 is an apocalyptic number.
It is an amenable number.
78211298048 is an abundant number, since it is smaller than the sum of its proper divisors (95712457552).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
78211298048 is a wasteful number, since it uses less digits than its factorization.
78211298048 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 810437 (or 810423 counting only the distinct ones).
The product of its (nonzero) digits is 516096, while the sum is 50.
The spelling of 78211298048 in words is "seventy-eight billion, two hundred eleven million, two hundred ninety-eight thousand, forty-eight".
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