| Base | Representation |
|---|---|
| bin | 1001000101000101111… |
| … | …0101101110110011000 |
| 3 | 112220121220212010222000 |
| 4 | 2101101132231312120 |
| 5 | 10023424333014042 |
| 6 | 155354153401000 |
| 7 | 14161321446360 |
| oct | 2212136556630 |
| 9 | 486556763860 |
| 10 | 155985829272 |
| 11 | 60175a30299 |
| 12 | 26293409160 |
| 13 | 1192b726180 |
| 14 | 779a7519a0 |
| 15 | 40ce36874c |
| hex | 24517add98 |
155985829272 has 1024 divisors, whose sum is σ = 603832320000. Its totient is φ = 36100546560.
The previous prime is 155985829229. The next prime is 155985829273. The reversal of 155985829272 is 272928589551.
155985829272 is a `hidden beast` number, since 1 + 559 + 8 + 5 + 8 + 2 + 9 + 2 + 72 = 666.
155985829272 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a Harshad number since it is a multiple of its sum of digits (63).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (155985829273) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 255 ways as a sum of consecutive naturals, for example, 501561997 + ... + 501562307.
It is an arithmetic number, because the mean of its divisors is an integer number (589680000).
Almost surely, 2155985829272 is an apocalyptic number.
155985829272 is a gapful number since it is divisible by the number (12) 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 155985829272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (301916160000).
155985829272 is an abundant number, since it is smaller than the sum of its proper divisors (447846490728).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
155985829272 is a wasteful number, since it uses less digits than its factorization.
155985829272 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 461 (or 451 counting only the distinct ones).
The product of its digits is 36288000, while the sum is 63.
The spelling of 155985829272 in words is "one hundred fifty-five billion, nine hundred eighty-five million, eight hundred twenty-nine thousand, two hundred seventy-two".
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