Base | Representation |
---|---|
bin | 100101001101001… |
… | …1000000000111010 |
3 | 10020000010201101102 |
4 | 1022122120000322 |
5 | 10024044144330 |
6 | 323514051402 |
7 | 42636315020 |
oct | 11232300072 |
9 | 3200121342 |
10 | 1248428090 |
11 | 590783558 |
12 | 2aa119b62 |
13 | 16b84c260 |
14 | bbb38710 |
15 | 74904945 |
hex | 4a69803a |
1248428090 has 32 divisors (see below), whose sum is σ = 2765750400. Its totient is φ = 395106624.
The previous prime is 1248428081. The next prime is 1248428101. The reversal of 1248428090 is 908248421.
1248428090 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 685040 + ... + 686859.
It is an arithmetic number, because the mean of its divisors is an integer number (86429700).
Almost surely, 21248428090 is an apocalyptic number.
1248428090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
1248428090 is an abundant number, since it is smaller than the sum of its proper divisors (1517322310).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1248428090 is a wasteful number, since it uses less digits than its factorization.
1248428090 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1371926.
The product of its (nonzero) digits is 36864, while the sum is 38.
The square root of 1248428090 is about 35333.1019017578. The cubic root of 1248428090 is about 1076.7656119495.
The spelling of 1248428090 in words is "one billion, two hundred forty-eight million, four hundred twenty-eight thousand, ninety".
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