Base | Representation |
---|---|
bin | 101001001011101… |
… | …1101000110111000 |
3 | 10120022020210022221 |
4 | 1102113131012320 |
5 | 10312230131443 |
6 | 345042253424 |
7 | 46146534250 |
oct | 12227350670 |
9 | 3508223287 |
10 | 1381880248 |
11 | 64a0430a1 |
12 | 326957274 |
13 | 1903a6128 |
14 | d1756960 |
15 | 814b5eed |
hex | 525dd1b8 |
1381880248 has 16 divisors (see below), whose sum is σ = 2961172080. Its totient is φ = 592234368.
The previous prime is 1381880237. The next prime is 1381880281. The reversal of 1381880248 is 8420881831.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12338161 + ... + 12338272.
It is an arithmetic number, because the mean of its divisors is an integer number (185073255).
Almost surely, 21381880248 is an apocalyptic number.
It is an amenable number.
1381880248 is an abundant number, since it is smaller than the sum of its proper divisors (1579291832).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1381880248 is a wasteful number, since it uses less digits than its factorization.
1381880248 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 24676446 (or 24676442 counting only the distinct ones).
The product of its (nonzero) digits is 98304, while the sum is 43.
The square root of 1381880248 is about 37173.6499149599. The cubic root of 1381880248 is about 1113.8416917402.
The spelling of 1381880248 in words is "one billion, three hundred eighty-one million, eight hundred eighty thousand, two hundred forty-eight".
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