Base | Representation |
---|---|
bin | 100100101010100… |
… | …1110111100010000 |
3 | 10011202000212102111 |
4 | 1021111032330100 |
5 | 10004424143432 |
6 | 322025355104 |
7 | 42326255122 |
oct | 11125167420 |
9 | 3152025374 |
10 | 1230302992 |
11 | 581523936 |
12 | 2a4038a94 |
13 | 167b74349 |
14 | b957b212 |
15 | 73024347 |
hex | 4954ef10 |
1230302992 has 40 divisors (see below), whose sum is σ = 2453889816. Its totient is φ = 597282816.
The previous prime is 1230302951. The next prime is 1230302993. The reversal of 1230302992 is 2992030321.
It is a happy number.
It can be written as a sum of positive squares in 4 ways, for example, as 146313216 + 1083989776 = 12096^2 + 32924^2 .
It is not an unprimeable number, because it can be changed into a prime (1230302993) 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, 74778 + ... + 89734.
Almost surely, 21230302992 is an apocalyptic number.
It is an amenable number.
1230302992 is a deficient number, since it is larger than the sum of its proper divisors (1223586824).
1230302992 is a wasteful number, since it uses less digits than its factorization.
1230302992 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 15115 (or 15109 counting only the distinct ones).
The product of its (nonzero) digits is 5832, while the sum is 31.
The square root of 1230302992 is about 35075.6752180197. The cubic root of 1230302992 is about 1071.5292402816.
The spelling of 1230302992 in words is "one billion, two hundred thirty million, three hundred two thousand, nine hundred ninety-two".
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