| Base | Representation |
|---|---|
| bin | 11111011110100010110… |
| … | …10110011111100000000 |
| 3 | 10211101200002121202120000 |
| 4 | 33233101122303330000 |
| 5 | 120210003331223140 |
| 6 | 2144505103320000 |
| 7 | 141065552336016 |
| oct | 17572132637400 |
| 9 | 3741602552500 |
| 10 | 1081550257920 |
| 11 | 387756a19770 |
| 12 | 155740bb0000 |
| 13 | 7acb363b522 |
| 14 | 3a4c10488b6 |
| 15 | 1d200daaa30 |
| hex | fbd16b3f00 |
1081550257920 has 1440 divisors, whose sum is σ = 4456996125120. Its totient is φ = 247973806080.
The previous prime is 1081550257889. The next prime is 1081550257933. The reversal of 1081550257920 is 297520551801.
1081550257920 is a `hidden beast` number, since 1 + 0 + 8 + 1 + 5 + 50 + 2 + 579 + 20 = 666.
It is a tau number, because it is divible by the number of its divisors (1440).
It is a super-3 number, since 3×10815502579203 (a number of 37 digits) contains 333 as substring.
It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.
It is a Harshad number since it is a multiple of its sum of digits (45).
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 1752917452 + ... + 1752918068.
It is an arithmetic number, because the mean of its divisors is an integer number (3095136198).
Almost surely, 21081550257920 is an apocalyptic number.
1081550257920 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 1081550257920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2228498062560).
1081550257920 is an abundant number, since it is smaller than the sum of its proper divisors (3375445867200).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1081550257920 is a wasteful number, since it uses less digits than its factorization.
1081550257920 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 743 (or 720 counting only the distinct ones).
The product of its (nonzero) digits is 252000, while the sum is 45.
The spelling of 1081550257920 in words is "one trillion, eighty-one billion, five hundred fifty million, two hundred fifty-seven thousand, nine hundred twenty".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.084 sec. • engine limits •