Base | Representation |
---|---|
bin | 111101010010011… |
… | …001000000011000 |
3 | 2122122210120000202 |
4 | 331102121000120 |
5 | 4101211344232 |
6 | 250010321332 |
7 | 34323551402 |
oct | 7522310030 |
9 | 2578716022 |
10 | 1028231192 |
11 | 48845634a |
12 | 248429248 |
13 | 135043031 |
14 | 9a7b9b72 |
15 | 6040b162 |
hex | 3d499018 |
1028231192 has 32 divisors (see below), whose sum is σ = 2081138400. Its totient is φ = 474802944.
The previous prime is 1028231177. The next prime is 1028231201. The reversal of 1028231192 is 2911328201.
It is a Harshad number since it is a multiple of its sum of digits (29).
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 91013 + ... + 101684.
It is an arithmetic number, because the mean of its divisors is an integer number (65035575).
Almost surely, 21028231192 is an apocalyptic number.
It is an amenable number.
1028231192 is an abundant number, since it is smaller than the sum of its proper divisors (1052907208).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1028231192 is a wasteful number, since it uses less digits than its factorization.
1028231192 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 192755 (or 192751 counting only the distinct ones).
The product of its (nonzero) digits is 1728, while the sum is 29.
The square root of 1028231192 is about 32066.0442212631. The cubic root of 1028231192 is about 1009.3232050499.
Adding to 1028231192 its reverse (2911328201), we get a palindrome (3939559393).
The spelling of 1028231192 in words is "one billion, twenty-eight million, two hundred thirty-one thousand, one hundred ninety-two".
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