Base | Representation |
---|---|
bin | 1110101011100… |
… | …01010001000010 |
3 | 22120201112101020 |
4 | 13111301101002 |
5 | 223011203310 |
6 | 20115250310 |
7 | 3023510055 |
oct | 725612102 |
9 | 276645336 |
10 | 123147330 |
11 | 63571459 |
12 | 352a9996 |
13 | 1c689657 |
14 | 124d8a9c |
15 | ac28170 |
hex | 7571442 |
123147330 has 32 divisors (see below), whose sum is σ = 296049600. Its totient is φ = 32784192.
The previous prime is 123147329. The next prime is 123147373. The reversal of 123147330 is 33741321.
It is a super-2 number, since 2×1231473302 = 30330529772257800, which contains 22 as substring.
It is a self number, because there is not a number n which added to its sum of digits gives 123147330.
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, 16656 + ... + 22884.
It is an arithmetic number, because the mean of its divisors is an integer number (9251550).
Almost surely, 2123147330 is an apocalyptic number.
123147330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
123147330 is an abundant number, since it is smaller than the sum of its proper divisors (172902270).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
123147330 is a wasteful number, since it uses less digits than its factorization.
123147330 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 6898.
The product of its (nonzero) digits is 1512, while the sum is 24.
The square root of 123147330 is about 11097.1766679638. The cubic root of 123147330 is about 497.5174678008.
Adding to 123147330 its reverse (33741321), we get a palindrome (156888651).
The spelling of 123147330 in words is "one hundred twenty-three million, one hundred forty-seven thousand, three hundred thirty".
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