Base | Representation |
---|---|
bin | 111001011000010011… |
… | …0101111011011001110 |
3 | 102210001112222200210000 |
4 | 1302300212233123032 |
5 | 4004324314430110 |
6 | 132335111425130 |
7 | 11621361654651 |
oct | 1626046573316 |
9 | 383045880700 |
10 | 123222030030 |
11 | 48292694a60 |
12 | 1ba6a9851a6 |
13 | b80989a308 |
14 | 5d6d227898 |
15 | 3312ca61c0 |
hex | 1cb09af6ce |
123222030030 has 160 divisors (see below), whose sum is σ = 361948577760. Its totient is φ = 29830913280.
The previous prime is 123222030007. The next prime is 123222030031. The reversal of 123222030030 is 30030222321.
It is a happy number.
123222030030 is a `hidden beast` number, since 12 + 322 + 2 + 0 + 300 + 30 = 666.
It is a Harshad number since it is a multiple of its sum of digits (18).
It is a junction number, because it is equal to n+sod(n) for n = 123222029985 and 123222030012.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (123222030031) by changing a digit.
It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 6735736 + ... + 6754004.
It is an arithmetic number, because the mean of its divisors is an integer number (2262178611).
Almost surely, 2123222030030 is an apocalyptic number.
123222030030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is a practical number, because each smaller number is the sum of distinct divisors of 123222030030, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (180974288880).
123222030030 is an abundant number, since it is smaller than the sum of its proper divisors (238726547730).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
123222030030 is a wasteful number, since it uses less digits than its factorization.
123222030030 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 19056 (or 19047 counting only the distinct ones).
The product of its (nonzero) digits is 432, while the sum is 18.
Adding to 123222030030 its reverse (30030222321), we get a palindrome (153252252351).
The spelling of 123222030030 in words is "one hundred twenty-three billion, two hundred twenty-two million, thirty thousand, thirty".
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