Base | Representation |
---|---|
bin | 110010011010… |
… | …000011111100 |
3 | 220212100010111 |
4 | 302122003330 |
5 | 11340321243 |
6 | 1151115404 |
7 | 220213426 |
oct | 62320374 |
9 | 26770114 |
10 | 13213948 |
11 | 7505920 |
12 | 4512b64 |
13 | 2978707 |
14 | 1a7d816 |
15 | 126039d |
hex | c9a0fc |
13213948 has 12 divisors (see below), whose sum is σ = 25226712. Its totient is φ = 6006320.
The previous prime is 13213939. The next prime is 13213951. The reversal of 13213948 is 84931231.
13213948 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 150115 + ... + 150202.
It is an arithmetic number, because the mean of its divisors is an integer number (2102226).
Almost surely, 213213948 is an apocalyptic number.
It is an amenable number.
13213948 is a deficient number, since it is larger than the sum of its proper divisors (12012764).
13213948 is a wasteful number, since it uses less digits than its factorization.
13213948 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 300332 (or 300330 counting only the distinct ones).
The product of its digits is 5184, while the sum is 31.
The square root of 13213948 is about 3635.0994484333. The cubic root of 13213948 is about 236.4163625784.
It can be divided in two parts, 13213 and 948, that added together give a square (14161 = 1192).
The spelling of 13213948 in words is "thirteen million, two hundred thirteen thousand, nine hundred forty-eight".
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