Base | Representation |
---|---|
bin | 10010111010101100… |
… | …101000101001101011 |
3 | 1221102120212020010201 |
4 | 102322230220221223 |
5 | 313044401212303 |
6 | 13155315253031 |
7 | 1316232163216 |
oct | 227254505153 |
9 | 57376766121 |
10 | 20312132203 |
11 | 868373a620 |
12 | 3b2a5aa177 |
13 | 1bb926294c |
14 | da993677d |
15 | 7dd37481d |
hex | 4bab28a6b |
20312132203 has 8 divisors (see below), whose sum is σ = 22221466416. Its totient is φ = 18413260800.
The previous prime is 20312132167. The next prime is 20312132213. The reversal of 20312132203 is 30223121302.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 20312132203 - 217 = 20312001131 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (20312132213) 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, 2611638 + ... + 2619403.
It is an arithmetic number, because the mean of its divisors is an integer number (2777683302).
Almost surely, 220312132203 is an apocalyptic number.
20312132203 is a deficient number, since it is larger than the sum of its proper divisors (1909334213).
20312132203 is a wasteful number, since it uses less digits than its factorization.
20312132203 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 5231405.
The product of its (nonzero) digits is 432, while the sum is 19.
Adding to 20312132203 its reverse (30223121302), we get a palindrome (50535253505).
The spelling of 20312132203 in words is "twenty billion, three hundred twelve million, one hundred thirty-two thousand, two hundred three".
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