| Base | Representation |
|---|---|
| bin | 100100001010001… |
| … | …1110010010000000 |
| 3 | 10010120002101000012 |
| 4 | 1020110132102000 |
| 5 | 4441102421324 |
| 6 | 320221444052 |
| 7 | 42032050640 |
| oct | 11024362200 |
| 9 | 3116071005 |
| 10 | 1213326464 |
| 11 | 572989149 |
| 12 | 29a410628 |
| 13 | 1644ac16c |
| 14 | b71dc520 |
| 15 | 717be20e |
| hex | 4851e480 |
1213326464 has 32 divisors (see below), whose sum is σ = 2762486400. Its totient is φ = 519996672.
The previous prime is 1213326461. The next prime is 1213326467. The reversal of 1213326464 is 4646233121.
It is an interprime number because it is at equal distance from previous prime (1213326461) and next prime (1213326467).
It is a tau number, because it is divible by the number of its divisors (32).
It is a super-2 number, since 2×12133264642 = 2944322216485486592, which contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (32).
It is a self number, because there is not a number n which added to its sum of digits gives 1213326464.
It is not an unprimeable number, because it can be changed into a prime (1213326461) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 676184 + ... + 677975.
It is an arithmetic number, because the mean of its divisors is an integer number (86327700).
Almost surely, 21213326464 is an apocalyptic number.
1213326464 is a gapful number since it is divisible by the number (14) formed by its first and last digit.
It is an amenable number.
1213326464 is an abundant number, since it is smaller than the sum of its proper divisors (1549159936).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1213326464 is an equidigital number, since it uses as much as digits as its factorization.
1213326464 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1354180 (or 1354168 counting only the distinct ones).
The product of its digits is 20736, while the sum is 32.
The square root of 1213326464 is about 34832.8360028293. The cubic root of 1213326464 is about 1066.5778412145.
Adding to 1213326464 its reverse (4646233121), we get a palindrome (5859559585).
The spelling of 1213326464 in words is "one billion, two hundred thirteen million, three hundred twenty-six thousand, four hundred sixty-four".
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