Base | Representation |
---|---|
bin | 10010101101011010101… |
… | …11010011111011011110 |
3 | 2021110022221001102020200 |
4 | 21112231113103323132 |
5 | 41013033311241124 |
6 | 1211154124524330 |
7 | 64305431521464 |
oct | 11265527237336 |
9 | 2243287042220 |
10 | 642858696414 |
11 | 2286a8a7a560 |
12 | a47100b06a6 |
13 | 4881004b7bc |
14 | 23186394834 |
15 | 11ac77d5bc9 |
hex | 95ad5d3ede |
642858696414 has 48 divisors (see below), whose sum is σ = 1519537569264. Its totient is φ = 194798822400.
The previous prime is 642858696407. The next prime is 642858696419. The reversal of 642858696414 is 414696858246.
642858696414 is a `hidden beast` number, since 6 + 4 + 2 + 8 + 586 + 9 + 6 + 41 + 4 = 666.
It is a Curzon number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (642858696419) by changing a digit.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10805092 + ... + 10864424.
It is an arithmetic number, because the mean of its divisors is an integer number (31657032693).
Almost surely, 2642858696414 is an apocalyptic number.
642858696414 is an abundant number, since it is smaller than the sum of its proper divisors (876678872850).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
642858696414 is a wasteful number, since it uses less digits than its factorization.
642858696414 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 114073 (or 114070 counting only the distinct ones).
The product of its digits is 79626240, while the sum is 63.
The spelling of 642858696414 in words is "six hundred forty-two billion, eight hundred fifty-eight million, six hundred ninety-six thousand, four hundred fourteen".
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