Base | Representation |
---|---|
bin | 1110101010100… |
… | …10001111000110 |
3 | 22120111002000211 |
4 | 13111102033012 |
5 | 222443121410 |
6 | 20112430034 |
7 | 3022440364 |
oct | 725221706 |
9 | 276432024 |
10 | 123020230 |
11 | 63494a13 |
12 | 3524831a |
13 | 1c643848 |
14 | 124a4634 |
15 | ac0068a |
hex | 75523c6 |
123020230 has 8 divisors (see below), whose sum is σ = 221436432. Its totient is φ = 49208088.
The previous prime is 123020221. The next prime is 123020239. The reversal of 123020230 is 32020321.
It is a happy number.
It is an interprime number because it is at equal distance from previous prime (123020221) and next prime (123020239).
It is a sphenic number, since it is the product of 3 distinct primes.
It is a self number, because there is not a number n which added to its sum of digits gives 123020230.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (123020239) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6151002 + ... + 6151021.
It is an arithmetic number, because the mean of its divisors is an integer number (27679554).
Almost surely, 2123020230 is an apocalyptic number.
123020230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
123020230 is a deficient number, since it is larger than the sum of its proper divisors (98416202).
123020230 is a wasteful number, since it uses less digits than its factorization.
123020230 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 12302030.
The product of its (nonzero) digits is 72, while the sum is 13.
The square root of 123020230 is about 11091.4485077469. The cubic root of 123020230 is about 497.3462467727.
Adding to 123020230 its reverse (32020321), we get a palindrome (155040551).
Subtracting from 123020230 its reverse (32020321), we obtain a palindrome (90999909).
The spelling of 123020230 in words is "one hundred twenty-three million, twenty thousand, two hundred thirty".
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