Base | Representation |
---|---|
bin | 11010001011010110… |
… | …010000010000100000 |
3 | 2200112212112121101120 |
4 | 122023112100100200 |
5 | 430031030424220 |
6 | 20525032532240 |
7 | 2013351154254 |
oct | 321326202040 |
9 | 80485477346 |
10 | 28107670560 |
11 | 10a14057a02 |
12 | 5545251080 |
13 | 285c318a38 |
14 | 1508dba264 |
15 | ae7933a40 |
hex | 68b590420 |
28107670560 has 48 divisors (see below), whose sum is σ = 88539163776. Its totient is φ = 7495378688.
The previous prime is 28107670531. The next prime is 28107670561. The reversal of 28107670560 is 6507670182.
It is a tau number, because it is divible by the number of its divisors (48).
It is a super-2 number, since 2×281076705602 (a number of 22 digits) contains 22 as substring.
It is not an unprimeable number, because it can be changed into a prime (28107670561) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29278344 + ... + 29279303.
It is an arithmetic number, because the mean of its divisors is an integer number (1844565912).
Almost surely, 228107670560 is an apocalyptic number.
28107670560 is a gapful number since it is divisible by the number (20) formed by its first and last digit.
It is an amenable number.
28107670560 is an abundant number, since it is smaller than the sum of its proper divisors (60431493216).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
28107670560 is a wasteful number, since it uses less digits than its factorization.
28107670560 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 58557665 (or 58557657 counting only the distinct ones).
The product of its (nonzero) digits is 141120, while the sum is 42.
The spelling of 28107670560 in words is "twenty-eight billion, one hundred seven million, six hundred seventy thousand, five hundred sixty".
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