Base | Representation |
---|---|
bin | 1110101001011101… |
… | …11111001001001001 |
3 | 202022001121100112001 |
4 | 13110232333021021 |
5 | 112101144214340 |
6 | 3340201551001 |
7 | 365610234100 |
oct | 72456771111 |
9 | 22261540461 |
10 | 7864054345 |
11 | 3376065474 |
12 | 16357a5461 |
13 | 9843252c4 |
14 | 5485db037 |
15 | 3105e529a |
hex | 1d4bbf249 |
7864054345 has 24 divisors (see below), whose sum is σ = 11080209024. Its totient is φ = 5342079456.
The previous prime is 7864054321. The next prime is 7864054397. The reversal of 7864054345 is 5434504687.
It is not a de Polignac number, because 7864054345 - 29 = 7864053833 is a prime.
It is a super-2 number, since 2×78640543452 (a number of 21 digits) contains 22 as substring.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 7864054295 and 7864054304.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 123777 + ... + 176206.
It is an arithmetic number, because the mean of its divisors is an integer number (461675376).
Almost surely, 27864054345 is an apocalyptic number.
It is an amenable number.
7864054345 is a deficient number, since it is larger than the sum of its proper divisors (3216154679).
7864054345 is a wasteful number, since it uses less digits than its factorization.
7864054345 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 300109 (or 300102 counting only the distinct ones).
The product of its (nonzero) digits is 1612800, while the sum is 46.
The square root of 7864054345 is about 88679.5035225164. The cubic root of 7864054345 is about 1988.6064117438.
The spelling of 7864054345 in words is "seven billion, eight hundred sixty-four million, fifty-four thousand, three hundred forty-five".
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