Base | Representation |
---|---|
bin | 10111111101101… |
… | …001111010000110 |
3 | 1001000111200000100 |
4 | 113331221322012 |
5 | 1310410212111 |
6 | 103521024530 |
7 | 12651161430 |
oct | 2775517206 |
9 | 1030450010 |
10 | 402038406 |
11 | 196a38450 |
12 | b2785146 |
13 | 653a6363 |
14 | 3b575650 |
15 | 25467756 |
hex | 17f69e86 |
402038406 has 192 divisors, whose sum is σ = 1167768576. Its totient is φ = 96768000.
The previous prime is 402038401. The next prime is 402038489. The reversal of 402038406 is 604830204.
It is a super-3 number, since 3×4020384063 (a number of 27 digits) contains 333 as substring.
It is a self number, because there is not a number n which added to its sum of digits gives 402038406.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (402038401) by changing a digit.
It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 2662431 + ... + 2662581.
It is an arithmetic number, because the mean of its divisors is an integer number (6082128).
Almost surely, 2402038406 is an apocalyptic number.
It is a practical number, because each smaller number is the sum of distinct divisors of 402038406, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (583884288).
402038406 is an abundant number, since it is smaller than the sum of its proper divisors (765730170).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
402038406 is a wasteful number, since it uses less digits than its factorization.
402038406 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 307 (or 304 counting only the distinct ones).
The product of its (nonzero) digits is 4608, while the sum is 27.
The square root of 402038406 is about 20050.8953914782. The cubic root of 402038406 is about 738.0557716681.
The spelling of 402038406 in words is "four hundred two million, thirty-eight thousand, four hundred six".
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