Base | Representation |
---|---|
bin | 11010100101111101… |
… | …101110100001010000 |
3 | 2201200222210221221110 |
4 | 122211331232201100 |
5 | 431434340210434 |
6 | 21041224053320 |
7 | 2030412625362 |
oct | 324575564120 |
9 | 81628727843 |
10 | 28554225744 |
11 | 11123130480 |
12 | 564a904240 |
13 | 29009aa785 |
14 | 154c41cd32 |
15 | b21c414e9 |
hex | 6a5f6e850 |
28554225744 has 80 divisors (see below), whose sum is σ = 80936409024. Its totient is φ = 8602752000.
The previous prime is 28554225743. The next prime is 28554225769. The reversal of 28554225744 is 44752245582.
It is a Harshad number since it is a multiple of its sum of digits (48).
It is a junction number, because it is equal to n+sod(n) for n = 28554225693 and 28554225702.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (28554225743) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 64957 + ... + 247644.
Almost surely, 228554225744 is an apocalyptic number.
28554225744 is a gapful number since it is divisible by the number (24) formed by its first and last digit.
It is an amenable number.
28554225744 is an abundant number, since it is smaller than the sum of its proper divisors (52382183280).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
28554225744 is a wasteful number, since it uses less digits than its factorization.
28554225744 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 312796 (or 312790 counting only the distinct ones).
The product of its digits is 3584000, while the sum is 48.
The spelling of 28554225744 in words is "twenty-eight billion, five hundred fifty-four million, two hundred twenty-five thousand, seven hundred forty-four".
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