Base | Representation |
---|---|
bin | 1100110110001… |
… | …0101000000001 |
3 | 10202101110022101 |
4 | 3031202220001 |
5 | 102243200340 |
6 | 5202510401 |
7 | 1222661320 |
oct | 315425001 |
9 | 122343271 |
10 | 53881345 |
11 | 28461941 |
12 | 16065401 |
13 | b216c6b |
14 | 72280b7 |
15 | 4ae4c9a |
hex | 3362a01 |
53881345 has 8 divisors (see below), whose sum is σ = 73894464. Its totient is φ = 36947184.
The previous prime is 53881343. The next prime is 53881351. The reversal of 53881345 is 54318835.
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 53881345 - 21 = 53881343 is a prime.
It is not an unprimeable number, because it can be changed into a prime (53881343) 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, 769699 + ... + 769768.
It is an arithmetic number, because the mean of its divisors is an integer number (9236808).
Almost surely, 253881345 is an apocalyptic number.
It is an amenable number.
53881345 is a deficient number, since it is larger than the sum of its proper divisors (20013119).
53881345 is a wasteful number, since it uses less digits than its factorization.
53881345 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1539479.
The product of its digits is 57600, while the sum is 37.
The square root of 53881345 is about 7340.3913383416. The cubic root of 53881345 is about 377.6992676304.
The spelling of 53881345 in words is "fifty-three million, eight hundred eighty-one thousand, three hundred forty-five".
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