Base | Representation |
---|---|
bin | 10010111111111111… |
… | …110000001101110001 |
3 | 1221122210010200222202 |
4 | 102333333300031301 |
5 | 313240130430001 |
6 | 13212212512545 |
7 | 1321361615402 |
oct | 227777601561 |
9 | 57583120882 |
10 | 20401030001 |
11 | 8719938880 |
12 | 3b5431b755 |
13 | 1c017b9cb1 |
14 | db76779a9 |
15 | 7e608496b |
hex | 4bfff0371 |
20401030001 has 8 divisors (see below), whose sum is σ = 22260753984. Its totient is φ = 18542153520.
The previous prime is 20401029991. The next prime is 20401030031. The reversal of 20401030001 is 10003010402.
It is a happy number.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 20401030001 - 218 = 20400767857 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (11).
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (20401030031) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 161006 + ... + 258311.
It is an arithmetic number, because the mean of its divisors is an integer number (2782594248).
Almost surely, 220401030001 is an apocalyptic number.
It is an amenable number.
20401030001 is a deficient number, since it is larger than the sum of its proper divisors (1859723983).
20401030001 is a wasteful number, since it uses less digits than its factorization.
20401030001 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 423751.
The product of its (nonzero) digits is 24, while the sum is 11.
Adding to 20401030001 its reverse (10003010402), we get a palindrome (30404040403).
The spelling of 20401030001 in words is "twenty billion, four hundred one million, thirty thousand, one".
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