Base | Representation |
---|---|
bin | 100110101111… |
… | …0100001101101 |
3 | 1102012212020212 |
4 | 1031132201231 |
5 | 20144411000 |
6 | 2003152205 |
7 | 334430123 |
oct | 115364155 |
9 | 42185225 |
10 | 20310125 |
11 | 10512330 |
12 | 6975665 |
13 | 4291634 |
14 | 29a9913 |
15 | 1bb2c35 |
hex | 135e86d |
20310125 has 16 divisors (see below), whose sum is σ = 27653184. Its totient is φ = 14770000.
The previous prime is 20310119. The next prime is 20310131. The reversal of 20310125 is 52101302.
It is a happy number.
It is an interprime number because it is at equal distance from previous prime (20310119) and next prime (20310131).
It is not a de Polignac number, because 20310125 - 28 = 20309869 is a prime.
It is a Duffinian number.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6011 + ... + 8760.
It is an arithmetic number, because the mean of its divisors is an integer number (1728324).
Almost surely, 220310125 is an apocalyptic number.
20310125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.
It is an amenable number.
20310125 is a deficient number, since it is larger than the sum of its proper divisors (7343059).
20310125 is a wasteful number, since it uses less digits than its factorization.
20310125 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 14797 (or 14787 counting only the distinct ones).
The product of its (nonzero) digits is 60, while the sum is 14.
The square root of 20310125 is about 4506.6756040345. The cubic root of 20310125 is about 272.8375862663.
Adding to 20310125 its reverse (52101302), we get a palindrome (72411427).
The spelling of 20310125 in words is "twenty million, three hundred ten thousand, one hundred twenty-five".
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