Base | Representation |
---|---|
bin | 10010101000001010… |
… | …111010001011110000 |
3 | 1220121220222101012112 |
4 | 102220022322023300 |
5 | 311430313114412 |
6 | 13104413144452 |
7 | 1305436153403 |
oct | 225012721360 |
9 | 56556871175 |
10 | 20001301232 |
11 | 8534238720 |
12 | 3a6248b128 |
13 | 1b69a41cb3 |
14 | d7a543d3a |
15 | 7c0e26722 |
hex | 4a82ba2f0 |
20001301232 has 40 divisors (see below), whose sum is σ = 42360384000. Its totient is φ = 9073241280.
The previous prime is 20001301231. The next prime is 20001301237. The reversal of 20001301232 is 23210310002.
It is a happy number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (20001301231) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26048 + ... + 201695.
It is an arithmetic number, because the mean of its divisors is an integer number (1059009600).
Almost surely, 220001301232 is an apocalyptic number.
20001301232 is a gapful number since it is divisible by the number (22) formed by its first and last digit.
It is an amenable number.
20001301232 is an abundant number, since it is smaller than the sum of its proper divisors (22359082768).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
20001301232 is a wasteful number, since it uses less digits than its factorization.
20001301232 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 228261 (or 228255 counting only the distinct ones).
The product of its (nonzero) digits is 72, while the sum is 14.
Adding to 20001301232 its reverse (23210310002), we get a palindrome (43211611234).
The spelling of 20001301232 in words is "twenty billion, one million, three hundred one thousand, two hundred thirty-two".
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