Base | Representation |
---|---|
bin | 10100110010011110011… |
… | …011100001011010110000 |
3 | 12001120102200202211211200 |
4 | 110302132123201122300 |
5 | 141401221303012133 |
6 | 3012141152411200 |
7 | 205132502323413 |
oct | 24623633413260 |
9 | 5046380684750 |
10 | 1428587157168 |
11 | 500951230616 |
12 | 1b0a52b46b00 |
13 | a493b3749a2 |
14 | 4d20315bb7a |
15 | 27262c08913 |
hex | 14c9e6e16b0 |
1428587157168 has 30 divisors (see below), whose sum is σ = 3998059891644. Its totient is φ = 476195719008.
The previous prime is 1428587157167. The next prime is 1428587157209. The reversal of 1428587157168 is 8617517858241.
1428587157168 is a `hidden beast` number, since 1 + 4 + 2 + 8 + 58 + 7 + 1 + 571 + 6 + 8 = 666.
It is a super-2 number, since 2×14285871571682 (a number of 25 digits) contains 22 as substring.
It is not an unprimeable number, because it can be changed into a prime (1428587157167) by changing a digit.
It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4960371930 + ... + 4960372217.
Almost surely, 21428587157168 is an apocalyptic number.
1428587157168 is a gapful number since it is divisible by the number (18) formed by its first and last digit.
It is an amenable number.
1428587157168 is an abundant number, since it is smaller than the sum of its proper divisors (2569472734476).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1428587157168 is a wasteful number, since it uses less digits than its factorization.
1428587157168 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 9920744161 (or 9920744152 counting only the distinct ones).
The product of its digits is 30105600, while the sum is 63.
The spelling of 1428587157168 in words is "one trillion, four hundred twenty-eight billion, five hundred eighty-seven million, one hundred fifty-seven thousand, one hundred sixty-eight".
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