Base | Representation |
---|---|
bin | 1101100111111… |
… | …0100010000101 |
3 | 10222112002020110 |
4 | 3121332202011 |
5 | 104112011011 |
6 | 5400423233 |
7 | 1262456643 |
oct | 331764205 |
9 | 128462213 |
10 | 57141381 |
11 | 2a289190 |
12 | 17177b19 |
13 | bab8a8b |
14 | 7836193 |
15 | 503aba6 |
hex | 367e885 |
57141381 has 16 divisors (see below), whose sum is σ = 83603520. Its totient is φ = 34427520.
The previous prime is 57141373. The next prime is 57141389. The reversal of 57141381 is 18314175.
It is an interprime number because it is at equal distance from previous prime (57141373) and next prime (57141389).
It is not a de Polignac number, because 57141381 - 23 = 57141373 is a prime.
It is a super-2 number, since 2×571413812 = 6530274845174322, which contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (57141389) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 705 + ... + 10713.
It is an arithmetic number, because the mean of its divisors is an integer number (5225220).
Almost surely, 257141381 is an apocalyptic number.
It is an amenable number.
57141381 is a deficient number, since it is larger than the sum of its proper divisors (26462139).
57141381 is a wasteful number, since it uses less digits than its factorization.
57141381 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 10196.
The product of its digits is 3360, while the sum is 30.
The square root of 57141381 is about 7559.1918218815. The cubic root of 57141381 is about 385.1680404359.
The spelling of 57141381 in words is "fifty-seven million, one hundred forty-one thousand, three hundred eighty-one".
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