Base | Representation |
---|---|
bin | 10010101001111101… |
… | …010110001001111011 |
3 | 1220201000102111002010 |
4 | 102221331112021323 |
5 | 312011003101334 |
6 | 13111404141003 |
7 | 1306252146120 |
oct | 225175261173 |
9 | 56630374063 |
10 | 20031300219 |
11 | 854a168377 |
12 | 3a70537763 |
13 | 1b73016688 |
14 | d80512747 |
15 | 7c38a00e9 |
hex | 4a9f5627b |
20031300219 has 64 divisors (see below), whose sum is σ = 31794757632. Its totient is φ = 10981488000.
The previous prime is 20031300173. The next prime is 20031300257. The reversal of 20031300219 is 91200313002.
It is a happy number.
It is not a de Polignac number, because 20031300219 - 28 = 20031299963 is a prime.
It is a super-2 number, since 2×200313002192 (a number of 21 digits) contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (21).
It is a junction number, because it is equal to n+sod(n) for n = 20031300195 and 20031300204.
It is not an unprimeable number, because it can be changed into a prime (20031301219) by changing a digit.
It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 13804444 + ... + 13805894.
It is an arithmetic number, because the mean of its divisors is an integer number (496793088).
Almost surely, 220031300219 is an apocalyptic number.
20031300219 is a deficient number, since it is larger than the sum of its proper divisors (11763457413).
20031300219 is a wasteful number, since it uses less digits than its factorization.
20031300219 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1776.
The product of its (nonzero) digits is 324, while the sum is 21.
The spelling of 20031300219 in words is "twenty billion, thirty-one million, three hundred thousand, two hundred nineteen".
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