Base | Representation |
---|---|
bin | 10010101000101100… |
… | …000110001001101010 |
3 | 1220122112100101001020 |
4 | 102220230012021222 |
5 | 311440030013002 |
6 | 13105323433310 |
7 | 1305603126225 |
oct | 225054061152 |
9 | 56575311036 |
10 | 20010001002 |
11 | 853913aa12 |
12 | 3a65385836 |
13 | 1b6b799aa4 |
14 | d7b76a5bc |
15 | 7c1a942bc |
hex | 4a8b0626a |
20010001002 has 16 divisors (see below), whose sum is σ = 40172172480. Its totient is φ = 6644638592.
The previous prime is 20010000889. The next prime is 20010001009.
It is a happy number.
20010001002 is nontrivially palindromic in base 10.
It is a Harshad number since it is a multiple of its sum of digits (6).
It is not an unprimeable number, because it can be changed into a prime (20010001009) 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, 6338727 + ... + 6341882.
It is an arithmetic number, because the mean of its divisors is an integer number (2510760780).
Almost surely, 220010001002 is an apocalyptic number.
20010001002 is an abundant number, since it is smaller than the sum of its proper divisors (20162171478).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
20010001002 is a wasteful number, since it uses less digits than its factorization.
20010001002 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 12680877.
The product of its (nonzero) digits is 4, while the sum is 6.
It can be divided in two parts, 2001000 and 1002, that added together give a palindrome (2002002).
The spelling of 20010001002 in words is "twenty billion, ten million, one thousand, two".
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