Base | Representation |
---|---|
bin | 10010111010000011… |
… | …111001100011101001 |
3 | 1221101211202200202212 |
4 | 102322003321203221 |
5 | 313034133003140 |
6 | 13154254334505 |
7 | 1316042336132 |
oct | 227203714351 |
9 | 57354680685 |
10 | 20301453545 |
11 | 867870658a |
12 | 3b26aba435 |
13 | 1bb6c94209 |
14 | da8356c89 |
15 | 7dc465765 |
hex | 4ba0f98e9 |
20301453545 has 8 divisors (see below), whose sum is σ = 25643941440. Its totient is φ = 15386364720.
The previous prime is 20301453527. The next prime is 20301453551. The reversal of 20301453545 is 54535410302.
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 20301453545 - 26 = 20301453481 is a prime.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 106849661 + ... + 106849850.
It is an arithmetic number, because the mean of its divisors is an integer number (3205492680).
Almost surely, 220301453545 is an apocalyptic number.
It is an amenable number.
20301453545 is a deficient number, since it is larger than the sum of its proper divisors (5342487895).
20301453545 is a wasteful number, since it uses less digits than its factorization.
20301453545 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 213699535.
The product of its (nonzero) digits is 36000, while the sum is 32.
Adding to 20301453545 its reverse (54535410302), we get a palindrome (74836863847).
The spelling of 20301453545 in words is "twenty billion, three hundred one million, four hundred fifty-three thousand, five hundred forty-five".
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