| Base | Representation |
|---|---|
| bin | 101001111000100… |
| … | …0000000011100100 |
| 3 | 10121221102101120000 |
| 4 | 1103301000003210 |
| 5 | 10334232313322 |
| 6 | 351241341300 |
| 7 | 46553212413 |
| oct | 12361000344 |
| 9 | 3557371500 |
| 10 | 1405354212 |
| 11 | 661316469 |
| 12 | 332797830 |
| 13 | 195204852 |
| 14 | d490747a |
| 15 | 835a13ac |
| hex | 53c400e4 |
1405354212 has 120 divisors (see below), whose sum is σ = 3822070560. Its totient is φ = 449919360.
The previous prime is 1405354189. The next prime is 1405354231. The reversal of 1405354212 is 2124535041.
It is a super-2 number, since 2×14053542122 = 3950040922372281888, which contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (27).
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 39 ways as a sum of consecutive naturals, for example, 889239 + ... + 890817.
It is an arithmetic number, because the mean of its divisors is an integer number (31850588).
Almost surely, 21405354212 is an apocalyptic number.
1405354212 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 1405354212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1911035280).
1405354212 is an abundant number, since it is smaller than the sum of its proper divisors (2416716348).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1405354212 is a wasteful number, since it uses less digits than its factorization.
1405354212 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1703 (or 1692 counting only the distinct ones).
The product of its (nonzero) digits is 4800, while the sum is 27.
The square root of 1405354212 is about 37488.0542573231. The cubic root of 1405354212 is about 1120.1132464146.
Adding to 1405354212 its reverse (2124535041), we get a palindrome (3529889253).
It can be divided in two parts, 14053 and 54212, that added together give a triangular number (68265 = T369).
The spelling of 1405354212 in words is "one billion, four hundred five million, three hundred fifty-four thousand, two hundred twelve".
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