Base | Representation |
---|---|
bin | 10010111011110101… |
… | …011000011001010010 |
3 | 1221110220202002011022 |
4 | 102323311120121102 |
5 | 313114241432010 |
6 | 13201240115442 |
7 | 1316553236531 |
oct | 227365303122 |
9 | 57426662138 |
10 | 20331202130 |
11 | 8693485098 |
12 | 3b34a65b82 |
13 | 1bc01ab925 |
14 | dac29c318 |
15 | 7ded8ed55 |
hex | 4bbd58652 |
20331202130 has 128 divisors (see below), whose sum is σ = 41741844480. Its totient is φ = 7089223680.
The previous prime is 20331202127. The next prime is 20331202183. The reversal of 20331202130 is 3120213302.
It is a junction number, because it is equal to n+sod(n) for n = 20331202099 and 20331202108.
It is an unprimeable number.
It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 30209474 + ... + 30210146.
It is an arithmetic number, because the mean of its divisors is an integer number (326108160).
Almost surely, 220331202130 is an apocalyptic number.
20331202130 is an abundant number, since it is smaller than the sum of its proper divisors (21410642350).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
20331202130 is a wasteful number, since it uses less digits than its factorization.
20331202130 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 976.
The product of its (nonzero) digits is 216, while the sum is 17.
Adding to 20331202130 its reverse (3120213302), we get a palindrome (23451415432).
The spelling of 20331202130 in words is "twenty billion, three hundred thirty-one million, two hundred two thousand, one hundred thirty".
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