Base | Representation |
---|---|
bin | 10100100011100010… |
… | …111001001011100000 |
3 | 2002222011211102111200 |
4 | 110203202321023200 |
5 | 330200210424034 |
6 | 14050034041200 |
7 | 1410641662320 |
oct | 244342711340 |
9 | 62864742450 |
10 | 22071186144 |
11 | 93a6677907 |
12 | 433b719200 |
13 | 2109817677 |
14 | 10d53d1280 |
15 | 8929e0a99 |
hex | 5238b92e0 |
22071186144 has 144 divisors (see below), whose sum is σ = 75506820480. Its totient is φ = 5974145280.
The previous prime is 22071186143. The next prime is 22071186149. The reversal of 22071186144 is 44168117022.
It is a happy number.
22071186144 is a `hidden beast` number, since 2 + 20 + 7 + 1 + 18 + 614 + 4 = 666.
It is a tau number, because it is divible by the number of its divisors (144).
It is a Harshad number since it is a multiple of its sum of digits (36).
It is a junction number, because it is equal to n+sod(n) for n = 22071186099 and 22071186108.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (22071186143) by changing a digit.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 249802 + ... + 326409.
It is an arithmetic number, because the mean of its divisors is an integer number (524352920).
Almost surely, 222071186144 is an apocalyptic number.
22071186144 is a gapful number since it is divisible by the number (24) formed by its first and last digit.
It is an amenable number.
22071186144 is an abundant number, since it is smaller than the sum of its proper divisors (53435634336).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
22071186144 is a wasteful number, since it uses less digits than its factorization.
22071186144 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 576253 (or 576242 counting only the distinct ones).
The product of its (nonzero) digits is 21504, while the sum is 36.
The spelling of 22071186144 in words is "twenty-two billion, seventy-one million, one hundred eighty-six thousand, one hundred forty-four".
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