| Base | Representation |
|---|---|
| bin | 100100010111000… |
| … | …0011101001001100 |
| 3 | 10011000201002210010 |
| 4 | 1020232003221030 |
| 5 | 4444312024400 |
| 6 | 321021313220 |
| 7 | 42143052546 |
| oct | 11056035114 |
| 9 | 3130632703 |
| 10 | 1220033100 |
| 11 | 576749a20 |
| 12 | 2a0705810 |
| 13 | 1659b99a0 |
| 14 | b8066696 |
| 15 | 72196450 |
| hex | 48b83a4c |
1220033100 has 144 divisors (see below), whose sum is σ = 4147234560. Its totient is φ = 273004800.
The previous prime is 1220033081. The next prime is 1220033119. The reversal of 1220033100 is 13300221.
It is a happy number.
It is an interprime number because it is at equal distance from previous prime (1220033081) and next prime (1220033119).
It is a super-2 number, since 2×12200331002 = 2976961530191220000, which contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (12).
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 28681 + ... + 57119.
It is an arithmetic number, because the mean of its divisors is an integer number (28800240).
Almost surely, 21220033100 is an apocalyptic number.
1220033100 is a gapful number since it is divisible by the number (10) 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 1220033100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2073617280).
1220033100 is an abundant number, since it is smaller than the sum of its proper divisors (2927201460).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1220033100 is a wasteful number, since it uses less digits than its factorization.
1220033100 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 28480 (or 28473 counting only the distinct ones).
The product of its (nonzero) digits is 36, while the sum is 12.
The square root of 1220033100 is about 34928.9722150538. The cubic root of 1220033100 is about 1068.5393935407.
Adding to 1220033100 its reverse (13300221), we get a palindrome (1233333321).
The spelling of 1220033100 in words is "one billion, two hundred twenty million, thirty-three thousand, one hundred".
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