Base | Representation |
---|---|
bin | 110010011001… |
… | …111100110000 |
3 | 220212022111110 |
4 | 302121330300 |
5 | 11340312423 |
6 | 1151113320 |
7 | 220212201 |
oct | 62317460 |
9 | 26768443 |
10 | 13213488 |
11 | 7505542 |
12 | 4512840 |
13 | 2978442 |
14 | 1a7d5a8 |
15 | 1260193 |
hex | c99f30 |
13213488 has 40 divisors (see below), whose sum is σ = 36145008. Its totient is φ = 4145152.
The previous prime is 13213481. The next prime is 13213507. The reversal of 13213488 is 88431231.
13213488 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a super-2 number, since 2×132134882 = 349192530252288, which contains 22 as substring.
It is a nude number because it is divisible by every one of its digits.
It is not an unprimeable number, because it can be changed into a prime (13213481) 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, 7281 + ... + 8912.
Almost surely, 213213488 is an apocalyptic number.
It is an amenable number.
13213488 is an abundant number, since it is smaller than the sum of its proper divisors (22931520).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
13213488 is a wasteful number, since it uses less digits than its factorization.
13213488 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 16221 (or 16215 counting only the distinct ones).
The product of its digits is 4608, while the sum is 30.
The square root of 13213488 is about 3635.0361758860. The cubic root of 13213488 is about 236.4136191947.
The spelling of 13213488 in words is "thirteen million, two hundred thirteen thousand, four hundred eighty-eight".
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