Base | Representation |
---|---|
bin | 10010101001111101… |
… | …010110010110010111 |
3 | 1220201000102112011121 |
4 | 102221331112112113 |
5 | 312011003113030 |
6 | 13111404144411 |
7 | 1306252151335 |
oct | 225175262627 |
9 | 56630375147 |
10 | 20031301015 |
11 | 854a168a30 |
12 | 3a70538107 |
13 | 1b73016b4b |
14 | d80512b55 |
15 | 7c38a047a |
hex | 4a9f56597 |
20031301015 has 8 divisors (see below), whose sum is σ = 26222794128. Its totient is φ = 14568218880.
The previous prime is 20031301009. The next prime is 20031301027. The reversal of 20031301015 is 51010313002.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 20031301015 - 213 = 20031292823 is a prime.
It is a Duffinian number.
It is a self number, because there is not a number n which added to its sum of digits gives 20031301015.
It is a congruent number.
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, 182102682 + ... + 182102791.
It is an arithmetic number, because the mean of its divisors is an integer number (3277849266).
Almost surely, 220031301015 is an apocalyptic number.
20031301015 is a deficient number, since it is larger than the sum of its proper divisors (6191493113).
20031301015 is a wasteful number, since it uses less digits than its factorization.
20031301015 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 364205489.
The product of its (nonzero) digits is 90, while the sum is 16.
Adding to 20031301015 its reverse (51010313002), we get a palindrome (71041614017).
The spelling of 20031301015 in words is "twenty billion, thirty-one million, three hundred one thousand, fifteen".
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