Base | Representation |
---|---|
bin | 10010101110110001… |
… | …101110111111100110 |
3 | 1220220122112200120122 |
4 | 102232301232333212 |
5 | 312142202023220 |
6 | 13123413001542 |
7 | 1311253250261 |
oct | 225661567746 |
9 | 56818480518 |
10 | 20112142310 |
11 | 8590864217 |
12 | 3a936232b2 |
13 | 1b869b0130 |
14 | d8b157cd8 |
15 | 7caa1d425 |
hex | 4aec6efe6 |
20112142310 has 128 divisors (see below), whose sum is σ = 41542502400. Its totient is φ = 6954393600.
The previous prime is 20112142301. The next prime is 20112142319. The reversal of 20112142310 is 1324121102.
It is an interprime number because it is at equal distance from previous prime (20112142301) and next prime (20112142319).
It is a super-2 number, since 2×201121423102 (a number of 21 digits) contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (20112142319) by changing a digit.
It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 44792966 + ... + 44793414.
It is an arithmetic number, because the mean of its divisors is an integer number (324550800).
Almost surely, 220112142310 is an apocalyptic number.
20112142310 is an abundant number, since it is smaller than the sum of its proper divisors (21430360090).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
20112142310 is a wasteful number, since it uses less digits than its factorization.
20112142310 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 774.
The product of its (nonzero) digits is 96, while the sum is 17.
Adding to 20112142310 its reverse (1324121102), we get a palindrome (21436263412).
The spelling of 20112142310 in words is "twenty billion, one hundred twelve million, one hundred forty-two thousand, three hundred ten".
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