Base | Representation |
---|---|
bin | 10010111010101001… |
… | …111001011010101101 |
3 | 1221102112111202120002 |
4 | 102322221321122231 |
5 | 313044210230240 |
6 | 13155252034045 |
7 | 1316223113510 |
oct | 227251713255 |
9 | 57375452502 |
10 | 20311414445 |
11 | 868329a333 |
12 | 3b2a302925 |
13 | 1bb907103a |
14 | da97cad77 |
15 | 7dd281d15 |
hex | 4baa796ad |
20311414445 has 16 divisors (see below), whose sum is σ = 29494222848. Its totient is φ = 13108542720.
The previous prime is 20311414433. The next prime is 20311414451. The reversal of 20311414445 is 54441411302.
It is not a de Polignac number, because 20311414445 - 26 = 20311414381 is a prime.
It is a Duffinian number.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17067821 + ... + 17069010.
It is an arithmetic number, because the mean of its divisors is an integer number (1843388928).
Almost surely, 220311414445 is an apocalyptic number.
It is an amenable number.
20311414445 is a deficient number, since it is larger than the sum of its proper divisors (9182808403).
20311414445 is a wasteful number, since it uses less digits than its factorization.
20311414445 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 34136860.
The product of its (nonzero) digits is 7680, while the sum is 29.
Adding to 20311414445 its reverse (54441411302), we get a palindrome (74752825747).
The spelling of 20311414445 in words is "twenty billion, three hundred eleven million, four hundred fourteen thousand, four hundred forty-five".
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