Base | Representation |
---|---|
bin | 1100110110110100001… |
… | …0010010001001110000 |
3 | 210010002222212000202210 |
4 | 3031231002102021300 |
5 | 12104321344203110 |
6 | 245244551212120 |
7 | 21646300345035 |
oct | 3155502221160 |
9 | 703088760683 |
10 | 220872647280 |
11 | 8574294001a |
12 | 36981977040 |
13 | 17a9c73443c |
14 | a99424338c |
15 | 5b2ab17520 |
hex | 336d092270 |
220872647280 has 40 divisors (see below), whose sum is σ = 684705207312. Its totient is φ = 58899372544.
The previous prime is 220872647231. The next prime is 220872647291. The reversal of 220872647280 is 82746278022.
It is a tau number, because it is divible by the number of its divisors (40).
It is a hoax number, since the sum of its digits (48) coincides with the sum of the digits of its distinct prime factors.
It is a Harshad number since it is a multiple of its sum of digits (48).
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 460151109 + ... + 460151588.
Almost surely, 2220872647280 is an apocalyptic number.
220872647280 is a gapful number since it is divisible by the number (20) formed by its first and last digit.
It is an amenable number.
220872647280 is an abundant number, since it is smaller than the sum of its proper divisors (463832560032).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
220872647280 is a wasteful number, since it uses less digits than its factorization.
220872647280 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 920302713 (or 920302707 counting only the distinct ones).
The product of its (nonzero) digits is 1204224, while the sum is 48.
The spelling of 220872647280 in words is "two hundred twenty billion, eight hundred seventy-two million, six hundred forty-seven thousand, two hundred eighty".
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