Base | Representation |
---|---|
bin | 1001101111100011110101… |
… | …01011110010011100010000 |
3 | 2210212020120211200110210020 |
4 | 10313301322223302130100 |
5 | 10302013111410442400 |
6 | 113322401114103440 |
7 | 4340634163050012 |
oct | 467617253623420 |
9 | 83766524613706 |
10 | 21425355171600 |
11 | 6910495488aa6 |
12 | 24a046411ab80 |
13 | bc552cb9b213 |
14 | 540dc80661b2 |
15 | 2724c8e742a0 |
hex | 137c7aaf2710 |
21425355171600 has 60 divisors (see below), whose sum is σ = 68632554403536. Its totient is φ = 5713428045440.
The previous prime is 21425355171593. The next prime is 21425355171607. The reversal of 21425355171600 is 617155352412.
It is an interprime number because it is at equal distance from previous prime (21425355171593) and next prime (21425355171607).
It is a tau number, because it is divible by the number of its divisors (60).
It is a super-4 number, since 4×214253551716004 (a number of 54 digits) contains 4444 as substring.
It is not an unprimeable number, because it can be changed into a prime (21425355171607) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8927230122 + ... + 8927232521.
Almost surely, 221425355171600 is an apocalyptic number.
21425355171600 is a gapful number since it is divisible by the number (20) formed by its first and last digit.
It is an amenable number.
21425355171600 is an abundant number, since it is smaller than the sum of its proper divisors (47207199231936).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
21425355171600 is a wasteful number, since it uses less digits than its factorization.
21425355171600 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 17854462664 (or 17854462653 counting only the distinct ones).
The product of its (nonzero) digits is 252000, while the sum is 42.
The spelling of 21425355171600 in words is "twenty-one trillion, four hundred twenty-five billion, three hundred fifty-five million, one hundred seventy-one thousand, six hundred".
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