Base | Representation |
---|---|
bin | 10010101000001101… |
… | …000100101001010010 |
3 | 1220121222001012011122 |
4 | 102220031010221102 |
5 | 311430434241440 |
6 | 13104433242242 |
7 | 1305444035021 |
oct | 225015045122 |
9 | 56558035148 |
10 | 20001868370 |
11 | 8534595830 |
12 | 3a62703382 |
13 | 1b69bb0193 |
14 | d7a6508b8 |
15 | 7c0ed97b5 |
hex | 4a8344a52 |
20001868370 has 16 divisors (see below), whose sum is σ = 39276396288. Its totient is φ = 7273406640.
The previous prime is 20001868361. The next prime is 20001868451. The reversal of 20001868370 is 7386810002.
It is a Curzon number.
It is a self number, because there is not a number n which added to its sum of digits gives 20001868370.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 90917474 + ... + 90917693.
It is an arithmetic number, because the mean of its divisors is an integer number (2454774768).
Almost surely, 220001868370 is an apocalyptic number.
20001868370 is a deficient number, since it is larger than the sum of its proper divisors (19274527918).
20001868370 is a wasteful number, since it uses less digits than its factorization.
20001868370 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 181835185.
The product of its (nonzero) digits is 16128, while the sum is 35.
The spelling of 20001868370 in words is "twenty billion, one million, eight hundred sixty-eight thousand, three hundred seventy".
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