| Base | Representation |
|---|---|
| bin | 10010100000010… |
| … | …01001100111100 |
| 3 | 101211002100022221 |
| 4 | 21100021030330 |
| 5 | 304214230230 |
| 6 | 23223015124 |
| 7 | 3563256451 |
| oct | 1120111474 |
| 9 | 354070287 |
| 10 | 155226940 |
| 11 | 7a692330 |
| 12 | 43b9a4a4 |
| 13 | 2620c07b |
| 14 | 16889828 |
| 15 | d96327a |
| hex | 940933c |
155226940 has 48 divisors (see below), whose sum is σ = 360952704. Its totient is φ = 55598400.
The previous prime is 155226919. The next prime is 155226959. The reversal of 155226940 is 49622551.
It is a happy number.
155226940 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.
It is a Smith number, since the sum of its digits (34) coincides with the sum of the digits of its prime factors.
It is a junction number, because it is equal to n+sod(n) for n = 155226896 and 155226905.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9475 + ... + 20005.
It is an arithmetic number, because the mean of its divisors is an integer number (7519848).
Almost surely, 2155226940 is an apocalyptic number.
155226940 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 155226940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (180476352).
155226940 is an abundant number, since it is smaller than the sum of its proper divisors (205725764).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
155226940 is a wasteful number, since it uses less digits than its factorization.
155226940 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 10618 (or 10616 counting only the distinct ones).
The product of its (nonzero) digits is 21600, while the sum is 34.
The square root of 155226940 is about 12459.0103940883. The cubic root of 155226940 is about 537.4305690018.
The spelling of 155226940 in words is "one hundred fifty-five million, two hundred twenty-six thousand, nine hundred forty".
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