Base | Representation |
---|---|
bin | 11010100110100… |
… | …10110010001000 |
3 | 120112220210000000 |
4 | 31103102302020 |
5 | 424112131410 |
6 | 34051043000 |
7 | 5346561363 |
oct | 1523226210 |
9 | 515823000 |
10 | 223161480 |
11 | 104a72583 |
12 | 628a0460 |
13 | 37306719 |
14 | 218d10da |
15 | 148d1dc0 |
hex | d4d2c88 |
223161480 has 128 divisors (see below), whose sum is σ = 753350400. Its totient is φ = 59486400.
The previous prime is 223161469. The next prime is 223161481. The reversal of 223161480 is 84161322.
223161480 is a `hidden beast` number, since 2 + 23 + 161 + 480 = 666.
It is a super-3 number, since 3×2231614803 (a number of 26 digits) contains 333 as substring.
It is a Harshad number since it is a multiple of its sum of digits (27).
It is not an unprimeable number, because it can be changed into a prime (223161481) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 86205 + ... + 88755.
It is an arithmetic number, because the mean of its divisors is an integer number (5885550).
Almost surely, 2223161480 is an apocalyptic number.
223161480 is a gapful number since it is divisible by the number (20) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 223161480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (376675200).
223161480 is an abundant number, since it is smaller than the sum of its proper divisors (530188920).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
223161480 is an equidigital number, since it uses as much as digits as its factorization.
223161480 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2583 (or 2561 counting only the distinct ones).
The product of its (nonzero) digits is 2304, while the sum is 27.
The square root of 223161480 is about 14938.5902949375. The cubic root of 223161480 is about 606.5590371127.
The spelling of 223161480 in words is "two hundred twenty-three million, one hundred sixty-one thousand, four hundred eighty".
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