Base | Representation |
---|---|
bin | 11111010111011010011100… |
… | …01011000011001000100011 |
3 | 100001012212102222121211221210 |
4 | 33223231032023003020203 |
5 | 33020033120434410411 |
6 | 402410150035321203 |
7 | 20346135521540466 |
oct | 1753551613031043 |
9 | 301185388554853 |
10 | 68974191325731 |
11 | 1aa8287693926a |
12 | 789b7b1150203 |
13 | 2c64313805793 |
14 | 13065238cd2dd |
15 | 7e929c5beca6 |
hex | 3ebb4e2c3223 |
68974191325731 has 32 divisors (see below), whose sum is σ = 93785035327488. Its totient is φ = 45080555950080.
The previous prime is 68974191325693. The next prime is 68974191325783. The reversal of 68974191325731 is 13752319147986.
It is not a de Polignac number, because 68974191325731 - 214 = 68974191309347 is a prime.
It is a super-2 number, since 2×689741913257312 (a number of 28 digits) contains 22 as substring.
It is not an unprimeable number, because it can be changed into a prime (68974191325231) 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, 94062150 + ... + 94792596.
It is an arithmetic number, because the mean of its divisors is an integer number (2930782353984).
Almost surely, 268974191325731 is an apocalyptic number.
68974191325731 is a deficient number, since it is larger than the sum of its proper divisors (24810844001757).
68974191325731 is a wasteful number, since it uses less digits than its factorization.
68974191325731 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 733011.
The product of its digits is 68584320, while the sum is 66.
The spelling of 68974191325731 in words is "sixty-eight trillion, nine hundred seventy-four billion, one hundred ninety-one million, three hundred twenty-five thousand, seven hundred thirty-one".
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