Base | Representation |
---|---|
bin | 10011010001111111… |
… | …111100110110100010 |
3 | 1222102211111000020111 |
4 | 103101333330312202 |
5 | 314344441243100 |
6 | 13302202401534 |
7 | 1332020130322 |
oct | 232177746642 |
9 | 58384430214 |
10 | 20703071650 |
11 | 8864387178 |
12 | 40195002aa |
13 | 1c4c251171 |
14 | 100581d282 |
15 | 8128486ba |
hex | 4d1ffcda2 |
20703071650 has 48 divisors (see below), whose sum is σ = 42296846400. Its totient is φ = 7504263360.
The previous prime is 20703071617. The next prime is 20703071747. The reversal of 20703071650 is 5617030702.
It is an unprimeable number.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 451905 + ... + 495604.
It is an arithmetic number, because the mean of its divisors is an integer number (881184300).
Almost surely, 220703071650 is an apocalyptic number.
20703071650 is an abundant number, since it is smaller than the sum of its proper divisors (21593774750).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
20703071650 is a wasteful number, since it uses less digits than its factorization.
20703071650 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 947563 (or 947558 counting only the distinct ones).
The product of its (nonzero) digits is 8820, while the sum is 31.
The spelling of 20703071650 in words is "twenty billion, seven hundred three million, seventy-one thousand, six hundred fifty".
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