Base | Representation |
---|---|
bin | 10100100000000010… |
… | …010000110001011101 |
3 | 2002211002000201102111 |
4 | 110200002100301131 |
5 | 330040122103011 |
6 | 14040131554021 |
7 | 1406325315601 |
oct | 244002206135 |
9 | 62732021374 |
10 | 22012300381 |
11 | 9376408095 |
12 | 4323a5b911 |
13 | 20ca56a916 |
14 | 10cb663501 |
15 | 88c75d121 |
hex | 520090c5d |
22012300381 has 2 divisors, whose sum is σ = 22012300382. Its totient is φ = 22012300380.
The previous prime is 22012300361. The next prime is 22012300393. The reversal of 22012300381 is 18300321022.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 21766281156 + 246019225 = 147534^2 + 15685^2 .
It is a cyclic number.
It is not a de Polignac number, because 22012300381 - 211 = 22012298333 is a prime.
It is a super-3 number, since 3×220123003813 (a number of 32 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (22012300361) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11006150190 + 11006150191.
It is an arithmetic number, because the mean of its divisors is an integer number (11006150191).
Almost surely, 222012300381 is an apocalyptic number.
It is an amenable number.
22012300381 is a deficient number, since it is larger than the sum of its proper divisors (1).
22012300381 is an equidigital number, since it uses as much as digits as its factorization.
22012300381 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 576, while the sum is 22.
The spelling of 22012300381 in words is "twenty-two billion, twelve million, three hundred thousand, three hundred eighty-one".
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