Base | Representation |
---|---|
bin | 1100111010010… |
… | …1101010011010 |
3 | 10202220101222012 |
4 | 3032211222122 |
5 | 102330442210 |
6 | 5212425522 |
7 | 1225214003 |
oct | 316455232 |
9 | 122811865 |
10 | 54155930 |
11 | 2862a174 |
12 | 161782a2 |
13 | b2b1c3a |
14 | 729a1aa |
15 | 4b4b305 |
hex | 33a5a9a |
54155930 has 16 divisors (see below), whose sum is σ = 99320904. Its totient is φ = 21253440.
The previous prime is 54155921. The next prime is 54155939. The reversal of 54155930 is 3955145.
It is an interprime number because it is at equal distance from previous prime (54155921) and next prime (54155939).
It can be written as a sum of positive squares in 4 ways, for example, as 33097009 + 21058921 = 5753^2 + 4589^2 .
It is not an unprimeable number, because it can be changed into a prime (54155939) 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, 50561 + ... + 51620.
Almost surely, 254155930 is an apocalyptic number.
54155930 is a deficient number, since it is larger than the sum of its proper divisors (45164974).
54155930 is a wasteful number, since it uses less digits than its factorization.
54155930 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 102241.
The product of its (nonzero) digits is 13500, while the sum is 32.
The square root of 54155930 is about 7359.0712729257. The cubic root of 54155930 is about 378.3397792162.
The spelling of 54155930 in words is "fifty-four million, one hundred fifty-five thousand, nine hundred thirty".
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