Base | Representation |
---|---|
bin | 10010101001010010… |
… | …010111001010000010 |
3 | 1220200020020000011111 |
4 | 102221102113022002 |
5 | 312000112012010 |
6 | 13110322433534 |
7 | 1306054315420 |
oct | 225122271202 |
9 | 56606200144 |
10 | 20020032130 |
11 | 85438714aa |
12 | 3a688028aa |
13 | 1b7089c877 |
14 | d7cc1c110 |
15 | 7c28c658a |
hex | 4a9497282 |
20020032130 has 16 divisors (see below), whose sum is σ = 41184066240. Its totient is φ = 6864010992.
The previous prime is 20020032127. The next prime is 20020032169. The reversal of 20020032130 is 3123002002.
It is a happy number.
It is a self number, because there is not a number n which added to its sum of digits gives 20020032130.
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, 143000160 + ... + 143000299.
It is an arithmetic number, because the mean of its divisors is an integer number (2574004140).
Almost surely, 220020032130 is an apocalyptic number.
20020032130 is an abundant number, since it is smaller than the sum of its proper divisors (21164034110).
20020032130 is a wasteful number, since it uses less digits than its factorization.
20020032130 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 286000473.
The product of its (nonzero) digits is 72, while the sum is 13.
Adding to 20020032130 its reverse (3123002002), we get a palindrome (23143034132).
The spelling of 20020032130 in words is "twenty billion, twenty million, thirty-two thousand, one hundred thirty".
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