Base | Representation |
---|---|
bin | 100100101011100… |
… | …0100101001101100 |
3 | 10011202221100210112 |
4 | 1021113010221230 |
5 | 10010040111012 |
6 | 322043555152 |
7 | 42333333563 |
oct | 11127045154 |
9 | 3152840715 |
10 | 1230785132 |
11 | 5818230a5 |
12 | 2a422bab8 |
13 | 167cb2935 |
14 | b9664bda |
15 | 730bc122 |
hex | 495c4a6c |
1230785132 has 6 divisors (see below), whose sum is σ = 2153873988. Its totient is φ = 615392564.
The previous prime is 1230785119. The next prime is 1230785137. The reversal of 1230785132 is 2315870321.
It is not an unprimeable number, because it can be changed into a prime (1230785137) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 153848138 + ... + 153848145.
It is an arithmetic number, because the mean of its divisors is an integer number (358978998).
Almost surely, 21230785132 is an apocalyptic number.
It is an amenable number.
1230785132 is a deficient number, since it is larger than the sum of its proper divisors (923088856).
1230785132 is a wasteful number, since it uses less digits than its factorization.
1230785132 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 307696287 (or 307696285 counting only the distinct ones).
The product of its (nonzero) digits is 10080, while the sum is 32.
The square root of 1230785132 is about 35082.5473989561. The cubic root of 1230785132 is about 1071.6691948672.
The spelling of 1230785132 in words is "one billion, two hundred thirty million, seven hundred eighty-five thousand, one hundred thirty-two".
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