Base | Representation |
---|---|
bin | 1111011110101010… |
… | …0100001000110100 |
3 | 101201120121111101021 |
4 | 3313222210020310 |
5 | 32002203133140 |
6 | 1524150510524 |
7 | 204653011600 |
oct | 36752441064 |
9 | 11646544337 |
10 | 4155130420 |
11 | 184250aa91 |
12 | 97b665444 |
13 | 512ac886c |
14 | 2b5bb6500 |
15 | 194bb9b4a |
hex | f7aa4234 |
4155130420 has 144 divisors (see below), whose sum is σ = 10471241088. Its totient is φ = 1380153600.
The previous prime is 4155130417. The next prime is 4155130433. The reversal of 4155130420 is 240315514.
It is a happy number.
4155130420 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6362814 + ... + 6363466.
It is an arithmetic number, because the mean of its divisors is an integer number (72716952).
Almost surely, 24155130420 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 4155130420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5235620544).
4155130420 is an abundant number, since it is smaller than the sum of its proper divisors (6316110668).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
4155130420 is a wasteful number, since it uses less digits than its factorization.
4155130420 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 870 (or 861 counting only the distinct ones).
The product of its (nonzero) digits is 2400, while the sum is 25.
The square root of 4155130420 is about 64460.3011162685. The cubic root of 4155130420 is about 1607.6625184885.
Adding to 4155130420 its reverse (240315514), we get a palindrome (4395445934).
The spelling of 4155130420 in words is "four billion, one hundred fifty-five million, one hundred thirty thousand, four hundred twenty".
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