Base | Representation |
---|---|
bin | 101001001000100… |
… | …1110111100000100 |
3 | 10120012011221011020 |
4 | 1102101032330010 |
5 | 10311320434343 |
6 | 344543311140 |
7 | 46126632402 |
oct | 12221167404 |
9 | 3505157136 |
10 | 1380249348 |
11 | 649129845 |
12 | 3262ab4b0 |
13 | 18cc549ba |
14 | d1450472 |
15 | 81292b83 |
hex | 5244ef04 |
1380249348 has 48 divisors (see below), whose sum is σ = 3257755200. Its totient is φ = 454795264.
The previous prime is 1380249331. The next prime is 1380249349. The reversal of 1380249348 is 8439420831.
It is not an unprimeable number, because it can be changed into a prime (1380249349) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 607711 + ... + 609977.
It is an arithmetic number, because the mean of its divisors is an integer number (67869900).
Almost surely, 21380249348 is an apocalyptic number.
It is an amenable number.
1380249348 is an abundant number, since it is smaller than the sum of its proper divisors (1877505852).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1380249348 is a wasteful number, since it uses less digits than its factorization.
1380249348 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2836 (or 2834 counting only the distinct ones).
The product of its (nonzero) digits is 165888, while the sum is 42.
The square root of 1380249348 is about 37151.7072016886. The cubic root of 1380249348 is about 1113.4033325975.
The spelling of 1380249348 in words is "one billion, three hundred eighty million, two hundred forty-nine thousand, three hundred forty-eight".
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