Base | Representation |
---|---|
bin | 1110101101011… |
… | …11111011111110 |
3 | 22121012120111122 |
4 | 13112233323332 |
5 | 223042412110 |
6 | 20124550542 |
7 | 3025626341 |
oct | 726577376 |
9 | 277176448 |
10 | 123404030 |
11 | 63727302 |
12 | 353b2452 |
13 | 1c749449 |
14 | 12564458 |
15 | ac79255 |
hex | 75afefe |
123404030 has 8 divisors (see below), whose sum is σ = 222127272. Its totient is φ = 49361608.
The previous prime is 123404027. The next prime is 123404033. The reversal of 123404030 is 30404321.
It is an interprime number because it is at equal distance from previous prime (123404027) and next prime (123404033).
It is a sphenic number, since it is the product of 3 distinct primes.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (123404033) 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, 6170192 + ... + 6170211.
It is an arithmetic number, because the mean of its divisors is an integer number (27765909).
Almost surely, 2123404030 is an apocalyptic number.
123404030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
123404030 is a deficient number, since it is larger than the sum of its proper divisors (98723242).
123404030 is a wasteful number, since it uses less digits than its factorization.
123404030 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 12340410.
The product of its (nonzero) digits is 288, while the sum is 17.
The square root of 123404030 is about 11108.7366518430. The cubic root of 123404030 is about 497.8629187815.
Adding to 123404030 its reverse (30404321), we get a palindrome (153808351).
The spelling of 123404030 in words is "one hundred twenty-three million, four hundred four thousand, thirty".
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