Base | Representation |
---|---|
bin | 11111010001111010100000… |
… | …11100100010011000011001 |
3 | 100000112210202101212221010200 |
4 | 33220331100130202120121 |
5 | 33003434143212403302 |
6 | 402143301422332413 |
7 | 20326366432464615 |
oct | 1750752034423031 |
9 | 300483671787120 |
10 | 68785250903577 |
11 | 1aa0a72a9a864a |
12 | 786b06142a109 |
13 | 2c4c562870a10 |
14 | 12db31c58a345 |
15 | 7e43e005781c |
hex | 3e8f50722619 |
68785250903577 has 48 divisors (see below), whose sum is σ = 109620445426128. Its totient is φ = 41301265374720.
The previous prime is 68785250903563. The next prime is 68785250903587. The reversal of 68785250903577 is 77530905258786.
68785250903577 is a `hidden beast` number, since 6 + 8 + 7 + 8 + 525 + 0 + 90 + 3 + 5 + 7 + 7 = 666.
It can be written as a sum of positive squares in 8 ways, for example, as 20243709488601 + 48541541414976 = 4499301^2 + 6967176^2 .
It is not a de Polignac number, because 68785250903577 - 26 = 68785250903513 is a prime.
It is not an unprimeable number, because it can be changed into a prime (68785250903527) by changing a digit.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 29520178 + ... + 31764939.
It is an arithmetic number, because the mean of its divisors is an integer number (2283759279711).
Almost surely, 268785250903577 is an apocalyptic number.
It is an amenable number.
68785250903577 is a deficient number, since it is larger than the sum of its proper divisors (40835194522551).
68785250903577 is a wasteful number, since it uses less digits than its factorization.
68785250903577 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 61285370 (or 61285367 counting only the distinct ones).
The product of its (nonzero) digits is 889056000, while the sum is 72.
The spelling of 68785250903577 in words is "sixty-eight trillion, seven hundred eighty-five billion, two hundred fifty million, nine hundred three thousand, five hundred seventy-seven".
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