| Base | Representation |
|---|---|
| bin | 110001001001101110… |
| … | …0110100101000000000 |
| 3 | 101002110011122001121110 |
| 4 | 1202103130310220000 |
| 5 | 3212133033141230 |
| 6 | 120253531323320 |
| 7 | 10424462610246 |
| oct | 1422334645000 |
| 9 | 332404561543 |
| 10 | 105553021440 |
| 11 | 40845a24319 |
| 12 | 185595b0540 |
| 13 | 9c520c8b49 |
| 14 | 517475a796 |
| 15 | 2b2b9ce4b0 |
| hex | 1893734a00 |
105553021440 has 160 divisors (see below), whose sum is σ = 349076407680. Its totient is φ = 27176812544.
The previous prime is 105553021429. The next prime is 105553021451. The reversal of 105553021440 is 44120355501.
It is an interprime number because it is at equal distance from previous prime (105553021429) and next prime (105553021451).
It is a tau number, because it is divible by the number of its divisors (160).
It is a super-2 number, since 2×1055530214402 (a number of 23 digits) contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (30).
It is a junction number, because it is equal to n+sod(n) for n = 105553021398 and 105553021407.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14244 + ... + 459683.
It is an arithmetic number, because the mean of its divisors is an integer number (2181727548).
Almost surely, 2105553021440 is an apocalyptic number.
105553021440 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 105553021440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (174538203840).
105553021440 is an abundant number, since it is smaller than the sum of its proper divisors (243523386240).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
105553021440 is an equidigital number, since it uses as much as digits as its factorization.
105553021440 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 473982 (or 473966 counting only the distinct ones).
The product of its (nonzero) digits is 12000, while the sum is 30.
Adding to 105553021440 its reverse (44120355501), we get a palindrome (149673376941).
The spelling of 105553021440 in words is "one hundred five billion, five hundred fifty-three million, twenty-one thousand, four hundred forty".
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