Base | Representation |
---|---|
bin | 10111111010101… |
… | …010011100111001 |
3 | 1000222000211021201 |
4 | 113322222130321 |
5 | 1310210113301 |
6 | 103452134201 |
7 | 12641414215 |
oct | 2772523471 |
9 | 1028024251 |
10 | 401254201 |
11 | 196552247 |
12 | b2467361 |
13 | 6519042a |
14 | 3b40d945 |
15 | 25360201 |
hex | 17eaa739 |
401254201 has 4 divisors (see below), whose sum is σ = 401524452. Its totient is φ = 400983952.
The previous prime is 401254171. The next prime is 401254207. The reversal of 401254201 is 102452104.
It is a semiprime because it is the product of two primes.
It can be written as a sum of positive squares in 2 ways, for example, as 136866601 + 264387600 = 11699^2 + 16260^2 .
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-401254201 is a prime.
It is a super-2 number, since 2×4012542012 = 322009867640296802, which contains 22 as substring.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (401254207) 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, 132886 + ... + 135871.
It is an arithmetic number, because the mean of its divisors is an integer number (100381113).
Almost surely, 2401254201 is an apocalyptic number.
It is an amenable number.
401254201 is a deficient number, since it is larger than the sum of its proper divisors (270251).
401254201 is a wasteful number, since it uses less digits than its factorization.
401254201 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 270250.
The product of its (nonzero) digits is 320, while the sum is 19.
The square root of 401254201 is about 20031.3304850177. The cubic root of 401254201 is about 737.5755822566.
The spelling of 401254201 in words is "four hundred one million, two hundred fifty-four thousand, two hundred one".
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