Base | Representation |
---|---|
bin | 111000000000101011… |
… | …1001011101001000101 |
3 | 102111110122200120102011 |
4 | 1300001113023221011 |
5 | 3432314134013001 |
6 | 131131243214221 |
7 | 11455461415354 |
oct | 1600127135105 |
9 | 374418616364 |
10 | 120281938501 |
11 | 4701402274a |
12 | 1b38a217371 |
13 | b45b73019a |
14 | 5b7097799b |
15 | 31deae7d51 |
hex | 1c015cba45 |
120281938501 has 2 divisors, whose sum is σ = 120281938502. Its totient is φ = 120281938500.
The previous prime is 120281938433. The next prime is 120281938541. The reversal of 120281938501 is 105839182021.
It is an a-pointer prime, because the next prime (120281938541) can be obtained adding 120281938501 to its sum of digits (40).
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 113401236001 + 6880702500 = 336751^2 + 82950^2 .
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-120281938501 is a prime.
It is a super-2 number, since 2×1202819385012 (a number of 23 digits) contains 22 as substring.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (120281938541) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60140969250 + 60140969251.
It is an arithmetic number, because the mean of its divisors is an integer number (60140969251).
Almost surely, 2120281938501 is an apocalyptic number.
It is an amenable number.
120281938501 is a deficient number, since it is larger than the sum of its proper divisors (1).
120281938501 is an equidigital number, since it uses as much as digits as its factorization.
120281938501 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 34560, while the sum is 40.
The spelling of 120281938501 in words is "one hundred twenty billion, two hundred eighty-one million, nine hundred thirty-eight thousand, five hundred one".
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