Base | Representation |
---|---|
bin | 10011000110010100… |
… | …001001010000011110 |
3 | 1221221011121111122201 |
4 | 103012110021100132 |
5 | 313444300220000 |
6 | 13230521002114 |
7 | 1324116644662 |
oct | 230624112036 |
9 | 57834544581 |
10 | 20507038750 |
11 | 8773763810 |
12 | 3b8392333a |
13 | 1c1a755773 |
14 | dc77908a2 |
15 | 80052496a |
hex | 4c650941e |
20507038750 has 40 divisors (see below), whose sum is σ = 41932820952. Its totient is φ = 7457100000.
The previous prime is 20507038729. The next prime is 20507038771. The reversal of 20507038750 is 5783070502.
It is an interprime number because it is at equal distance from previous prime (20507038729) and next prime (20507038771).
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 731961 + ... + 759460.
Almost surely, 220507038750 is an apocalyptic number.
20507038750 is an abundant number, since it is smaller than the sum of its proper divisors (21425782202).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
20507038750 is a wasteful number, since it uses less digits than its factorization.
20507038750 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1491454 (or 1491439 counting only the distinct ones).
The product of its (nonzero) digits is 58800, while the sum is 37.
The spelling of 20507038750 in words is "twenty billion, five hundred seven million, thirty-eight thousand, seven hundred fifty".
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