| Base | Representation |
|---|---|
| bin | 1001000001001101… |
| … | …1101011011110000 |
| 3 | 20020201120120122020 |
| 4 | 2100103131123300 |
| 5 | 14424240123100 |
| 6 | 1040122511440 |
| 7 | 113665222341 |
| oct | 22023353360 |
| 9 | 6221516566 |
| 10 | 2421020400 |
| 11 | 103266a507 |
| 12 | 576965580 |
| 13 | 2c7768666 |
| 14 | 18d7720c8 |
| 15 | e28295a0 |
| hex | 904dd6f0 |
2421020400 has 120 divisors (see below), whose sum is σ = 7935861120. Its totient is φ = 630577920.
The previous prime is 2421020389. The next prime is 2421020401. The reversal of 2421020400 is 40201242.
It is a tau number, because it is divible by the number of its divisors (120).
It is a super-2 number, since 2×24210204002 = 11722679554432320000, which contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (15).
It is a self number, because there is not a number n which added to its sum of digits gives 2421020400.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (2421020401) by changing a digit.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 28141 + ... + 75059.
It is an arithmetic number, because the mean of its divisors is an integer number (66132176).
Almost surely, 22421020400 is an apocalyptic number.
2421020400 is a gapful number since it is divisible by the number (20) 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 2421020400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3967930560).
2421020400 is an abundant number, since it is smaller than the sum of its proper divisors (5514840720).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
2421020400 is a wasteful number, since it uses less digits than its factorization.
2421020400 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 46983 (or 46972 counting only the distinct ones).
The product of its (nonzero) digits is 128, while the sum is 15.
The square root of 2421020400 is about 49203.8657017922. The cubic root of 2421020400 is about 1342.7633625686.
Adding to 2421020400 its reverse (40201242), we get a palindrome (2461221642).
The spelling of 2421020400 in words is "two billion, four hundred twenty-one million, twenty thousand, four hundred".
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