Base | Representation |
---|---|
bin | 100100010110110000… |
… | …0101110000000110000 |
3 | 21110112001001110100200 |
4 | 1020231200232000300 |
5 | 2234343134304440 |
6 | 55511034315200 |
7 | 5432502144165 |
oct | 1105540560060 |
9 | 243461043320 |
10 | 78072963120 |
11 | 30124174819 |
12 | 1316a588b00 |
13 | 7492b25bc9 |
14 | 3ac8c7406c |
15 | 206e21ec30 |
hex | 122d82e030 |
78072963120 has 60 divisors (see below), whose sum is σ = 262195036896. Its totient is φ = 20819456640.
The previous prime is 78072963113. The next prime is 78072963121. The reversal of 78072963120 is 2136927087.
78072963120 is a `hidden beast` number, since 7 + 8 + 0 + 7 + 2 + 9 + 631 + 2 + 0 = 666.
It is a tau number, because it is divible by the number of its divisors (60).
It is a Harshad number since it is a multiple of its sum of digits (45).
It is not an unprimeable number, because it can be changed into a prime (78072963121) by changing a digit.
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 11 ways as a sum of consecutive naturals, for example, 54216616 + ... + 54218055.
Almost surely, 278072963120 is an apocalyptic number.
It is an amenable number.
78072963120 is an abundant number, since it is smaller than the sum of its proper divisors (184122073776).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
78072963120 is a wasteful number, since it uses less digits than its factorization.
78072963120 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 108434690 (or 108434681 counting only the distinct ones).
The product of its (nonzero) digits is 254016, while the sum is 45.
The spelling of 78072963120 in words is "seventy-eight billion, seventy-two million, nine hundred sixty-three thousand, one hundred twenty".
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