Base | Representation |
---|---|
bin | 1001010011111… |
… | …10100011100011 |
3 | 12102222112212220 |
4 | 10221332203203 |
5 | 124444103440 |
6 | 11430122123 |
7 | 1635643452 |
oct | 451764343 |
9 | 172875786 |
10 | 78112995 |
11 | 401024a4 |
12 | 221b0343 |
13 | 1324c50c |
14 | a534b99 |
15 | 6cce8d0 |
hex | 4a7e8e3 |
78112995 has 32 divisors (see below), whose sum is σ = 129003840. Its totient is φ = 40335360.
The previous prime is 78112987. The next prime is 78112999. The reversal of 78112995 is 59921187.
It is not a de Polignac number, because 78112995 - 23 = 78112987 is a prime.
It is a super-2 number, since 2×781129952 = 12203279975740050, which contains 22 as substring.
It is not an unprimeable number, because it can be changed into a prime (78112999) 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, 96151 + ... + 96959.
It is an arithmetic number, because the mean of its divisors is an integer number (4031370).
Almost surely, 278112995 is an apocalyptic number.
78112995 is a deficient number, since it is larger than the sum of its proper divisors (50890845).
78112995 is a wasteful number, since it uses less digits than its factorization.
78112995 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1015.
The product of its digits is 45360, while the sum is 42.
The square root of 78112995 is about 8838.1556333887. The cubic root of 78112995 is about 427.4720887355.
The spelling of 78112995 in words is "seventy-eight million, one hundred twelve thousand, nine hundred ninety-five".
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