| Base | Representation |
|---|---|
| bin | 11100101110010111… |
| … | …10010000011101000 |
| 3 | 1110210201222202101120 |
| 4 | 32113023302003220 |
| 5 | 223040331200440 |
| 6 | 11030125015240 |
| 7 | 1054104212301 |
| oct | 162713620350 |
| 9 | 43721882346 |
| 10 | 15421350120 |
| 11 | 65a3a4a660 |
| 12 | 2ba46b4520 |
| 13 | 15b9c24457 |
| 14 | a641857a8 |
| 15 | 603ce3dd0 |
| hex | 3972f20e8 |
15421350120 has 128 divisors (see below), whose sum is σ = 50792019840. Its totient is φ = 3714647040.
The previous prime is 15421350103. The next prime is 15421350137. The reversal of 15421350120 is 2105312451.
It is a happy number.
15421350120 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is an interprime number because it is at equal distance from previous prime (15421350103) and next prime (15421350137).
It is a Harshad number since it is a multiple of its sum of digits (24).
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 170034 + ... + 244446.
It is an arithmetic number, because the mean of its divisors is an integer number (396812655).
Almost surely, 215421350120 is an apocalyptic number.
15421350120 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 15421350120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25396009920).
15421350120 is an abundant number, since it is smaller than the sum of its proper divisors (35370669720).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
15421350120 is a wasteful number, since it uses less digits than its factorization.
15421350120 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 74595 (or 74591 counting only the distinct ones).
The product of its (nonzero) digits is 1200, while the sum is 24.
Adding to 15421350120 its reverse (2105312451), we get a palindrome (17526662571).
The spelling of 15421350120 in words is "fifteen billion, four hundred twenty-one million, three hundred fifty thousand, one hundred twenty".
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