Base | Representation |
---|---|
bin | 110011011011… |
… | …000110111101 |
3 | 221100212121101 |
4 | 303123012331 |
5 | 11422333011 |
6 | 1200533101 |
7 | 222403255 |
oct | 63330675 |
9 | 27325541 |
10 | 13480381 |
11 | 7678012 |
12 | 4621191 |
13 | 2a3ca75 |
14 | 1b0c965 |
15 | 12b42c1 |
hex | cdb1bd |
13480381 has 8 divisors (see below), whose sum is σ = 14061824. Its totient is φ = 12908160.
The previous prime is 13480361. The next prime is 13480403. The reversal of 13480381 is 18308431.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 13480381 - 219 = 12956093 is a prime.
It is a super-2 number, since 2×134803812 = 363441343810322, which contains 22 as substring.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (13480301) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 766 + ... + 5248.
It is an arithmetic number, because the mean of its divisors is an integer number (1757728).
Almost surely, 213480381 is an apocalyptic number.
It is an amenable number.
13480381 is a deficient number, since it is larger than the sum of its proper divisors (581443).
13480381 is an equidigital number, since it uses as much as digits as its factorization.
13480381 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 4611.
The product of its (nonzero) digits is 2304, while the sum is 28.
The square root of 13480381 is about 3671.5638357517. The cubic root of 13480381 is about 237.9947566107.
It can be divided in two parts, 13480 and 381, that added together give a triangular number (13861 = T166).
The spelling of 13480381 in words is "thirteen million, four hundred eighty thousand, three hundred eighty-one".
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