Base | Representation |
---|---|
bin | 110001001110… |
… | …010000111000 |
3 | 220021120020200 |
4 | 301032100320 |
5 | 11300402410 |
6 | 1140322200 |
7 | 214451322 |
oct | 61162070 |
9 | 26246220 |
10 | 12903480 |
11 | 7313637 |
12 | 43a3360 |
13 | 289a2c5 |
14 | 19dc612 |
15 | 11ed3c0 |
hex | c4e438 |
12903480 has 96 divisors (see below), whose sum is σ = 42597360. Its totient is φ = 3386880.
The previous prime is 12903467. The next prime is 12903481. The reversal of 12903480 is 8430921.
It is a super-2 number, since 2×129034802 = 332999592220800, which contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (12903481) by changing a digit.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 26035 + ... + 26525.
Almost surely, 212903480 is an apocalyptic number.
12903480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 12903480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21298680).
12903480 is an abundant number, since it is smaller than the sum of its proper divisors (29693880).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12903480 is a wasteful number, since it uses less digits than its factorization.
12903480 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 581 (or 574 counting only the distinct ones).
The product of its (nonzero) digits is 1728, while the sum is 27.
The square root of 12903480 is about 3592.1414226057. The cubic root of 12903480 is about 234.5500974219.
It can be divided in two parts, 12903 and 480, that multiplied together give a triangular number (6193440 = T3519).
The spelling of 12903480 in words is "twelve million, nine hundred three thousand, four hundred eighty".
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