| Base | Representation |
|---|---|
| bin | 1011101001000101001… |
| … | …01011100110101101000 |
| 3 | 1102020111112112021001120 |
| 4 | 11310202211130311220 |
| 5 | 23023211110420240 |
| 6 | 503432453415240 |
| 7 | 40620450416244 |
| oct | 5644245346550 |
| 9 | 1366445467046 |
| 10 | 400012201320 |
| 11 | 14470a506436 |
| 12 | 6563733a520 |
| 13 | 2b94b020b64 |
| 14 | 15509a5b424 |
| 15 | a612a08ad0 |
| hex | 5d2295cd68 |
400012201320 has 128 divisors (see below), whose sum is σ = 1254465066240. Its totient is φ = 101848524800.
The previous prime is 400012201289. The next prime is 400012201327. The reversal of 400012201320 is 23102210004.
It is a super-2 number, since 2×4000122013202 (a number of 24 digits) 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 400012201320.
It is not an unprimeable number, because it can be changed into a prime (400012201327) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1407220 + ... + 1667420.
It is an arithmetic number, because the mean of its divisors is an integer number (9800508330).
Almost surely, 2400012201320 is an apocalyptic number.
400012201320 is a gapful number since it is divisible by the number (40) 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 400012201320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (627232533120).
400012201320 is an abundant number, since it is smaller than the sum of its proper divisors (854452864920).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
400012201320 is a wasteful number, since it uses less digits than its factorization.
400012201320 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 260795 (or 260791 counting only the distinct ones).
The product of its (nonzero) digits is 96, while the sum is 15.
Adding to 400012201320 its reverse (23102210004), we get a palindrome (423114411324).
The spelling of 400012201320 in words is "four hundred billion, twelve million, two hundred one thousand, three hundred twenty".
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