Base | Representation |
---|---|
bin | 10011000000000000… |
… | …110010011111000010 |
3 | 1221122210122111100010 |
4 | 103000000302133002 |
5 | 313240213121232 |
6 | 13212222405350 |
7 | 1321364125644 |
oct | 230000623702 |
9 | 57583574303 |
10 | 20401301442 |
11 | 871a003805 |
12 | 3b54430856 |
13 | 1c01883702 |
14 | db7708894 |
15 | 7e60da0cc |
hex | 4c00327c2 |
20401301442 has 8 divisors (see below), whose sum is σ = 40802602896. Its totient is φ = 6800433812.
The previous prime is 20401301411. The next prime is 20401301447. The reversal of 20401301442 is 24410310402.
It is a sphenic number, since it is the product of 3 distinct primes.
20401301442 is an admirable number.
It is not an unprimeable number, because it can be changed into a prime (20401301447) 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, 1700108448 + ... + 1700108459.
It is an arithmetic number, because the mean of its divisors is an integer number (5100325362).
Almost surely, 220401301442 is an apocalyptic number.
20401301442 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
20401301442 is a wasteful number, since it uses less digits than its factorization.
20401301442 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 3400216912.
The product of its (nonzero) digits is 768, while the sum is 21.
Adding to 20401301442 its reverse (24410310402), we get a palindrome (44811611844).
The spelling of 20401301442 in words is "twenty billion, four hundred one million, three hundred one thousand, four hundred forty-two".
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