Base | Representation |
---|---|
bin | 100101001110000… |
… | …1000110100010100 |
3 | 10020001000012012002 |
4 | 1022130020310110 |
5 | 10024203441012 |
6 | 323532014432 |
7 | 42643251050 |
oct | 11234106424 |
9 | 3201005162 |
10 | 1248890132 |
11 | 590a69706 |
12 | 2aa301418 |
13 | 16b981659 |
14 | bbc18c60 |
15 | 749967c2 |
hex | 4a708d14 |
1248890132 has 48 divisors (see below), whose sum is σ = 2558505600. Its totient is φ = 522381312.
The previous prime is 1248890131. The next prime is 1248890147. The reversal of 1248890132 is 2310988421.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1248890131) 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, 195119 + ... + 201417.
It is an arithmetic number, because the mean of its divisors is an integer number (53302200).
Almost surely, 21248890132 is an apocalyptic number.
It is an amenable number.
1248890132 is an abundant number, since it is smaller than the sum of its proper divisors (1309615468).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1248890132 is a wasteful number, since it uses less digits than its factorization.
1248890132 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 6480 (or 6478 counting only the distinct ones).
The product of its (nonzero) digits is 27648, while the sum is 38.
The square root of 1248890132 is about 35339.6396699231. The cubic root of 1248890132 is about 1076.8984321943.
The spelling of 1248890132 in words is "one billion, two hundred forty-eight million, eight hundred ninety thousand, one hundred thirty-two".
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